MKW36A/35A/34A Data Sheet
An ultra low power, highly integrated Bluetooth® Low
Energy 5.0 wireless microcontroller
Multi-Standard Radio
2.4 GHz Bluetooth Low Energy (Bluetooth LE) version
5.0 compliant supporting up to 8 simultaneous
hardware connections
Generic FSK modulation
Data Rate: 250, 500 and 1000 kbps
Modulations: GFSK BT = 0.3, 0.5, and 0.7;
FSK/MSK
Modulation Index: 0.32, 0.5, 0.7, and 1.0
Typical Receiver Sensitivity
(Bluetooth LE 1 Mbps) = –95 dBm
Typical Receiver Sensitivity
(250 kbps GFSK-BT=0.5, h=0.5) = –99 dBm
Programmable Transmitter Output Power:
–30 dBm to 5 dBm
Low external component counts for low cost application
On-chip balun with single ended bidirectional RF port
MCU and Memories
256 KB program flash memory plus 256 KB FlexNVM
on KW36A/34A
8 KB FlexRAM supporting EEPROM emulation on
KW36A/34A
512 KB program flash memory on KW35A
Up to 48 MHz Arm® Cortex®-M0+ core
On-chip 64 KB SRAM
System peripherals
Nine MCU low-power modes to provide power
optimization based on application requirements
DC-DC Converter supporting Buck and Bypass
operating modes
Direct memory access (DMA) Controller
Computer operating properly (COP) watchdog
Serial wire debug (SWD) Interface and Micro Trace
buffer
Bit Manipulation Engine (BME)
Analog Modules
16-bit Analog-to-Digital Converter (ADC)
6-bit High Speed Analog Comparator (CMP)
1.2 V voltage reference (VREF)
Timers
16-bit low-power timer (LPTMR)
3 Timer/PWM Modules(TPM): One 4 channel TPM
and two 2 channel TPMs
Programmable Interrupt Timer (PIT)
Real-Time Clock (RTC)
Communication interfaces
2 serial peripheral interface (SPI) modules
2 inter-integrated circuit (I2C) modules
MKW36A512VHT4
MKW36A512VFP4
MKW36A512VFT4
MKW35A512VFP4
MKW35A512VFT4
MKW34A512VFT4
48 LQFN
7x7 mm Pitch 0.5 mm
48 "Wettable" HVQFN
7x7 mm Pitch 0.5 mm
40 "Wettable" HVQFN
6x6 mm Pitch 0.5 mm
NXP Semiconductors MKW36A512
Data Sheet: Technical Data Rev. 8, 05/2020
NXP reserves the right to change the production detail specifications as may be
required to permit improvements in the design of its products.
Low Power Consumption
Transceiver current (DC-DC buck mode, 3.6 V supply)
Typical Rx Current: 6.3 mA
Typical Tx current: 5.7 mA (0 dBm output)
Low Power Mode (VLLS0) Current: 258 nA
Clocks
26 and 32 MHz supported for Bluetooth LE and
Generic FSK modes
32.768 kHz Crystal Oscillator
Operating Characteristics
Voltage range: 1.71 V to 3.6 V
Ambient temperature range: –40 to 105 °C
AEC Q100 Grade 2 Automotive Qualification
Human-machine interface
General-purpose input/output
Low Power UART (LPUART) module with LIN
support (2x LPUART on KW36A)
Carrier Modulator Timer (CMT)
FlexCAN module (with CAN FD support up to 3.2
Mbps baudrate) on KW36A
Security
AES-128 Hardware Accelerator (AESA)
True Random Number Generator (TRNG)
Advanced flash security on Program Flash
80-bit unique identification number per chip
40-bit unique media access control (MAC) sub-
address
LE Secure Connections
Orderable parts details
Device Top Line
Marking Qualification CAN
FD
2nd UART with
LIN FlexRAM Package
MKW36A512VHT4 (F)M36A Auto Y Y Y 7X7 mm 48-pin LQFN
MKW36A512VFT4 MW36A512V4 Auto Y Y Y 7X7 mm 48-pin "Wettable"
HVQFN
MKW36A512VFP4 M36A9V4 Auto Y Y Y 6X6 mm 40-pin "Wettable"
HVQFN
MKW35A512VFT4 MW35A512V4 Auto N N N 7X7 mm 48-pin "Wettable"
HVQFN
MKW35A512VFP4 M35A9V4 Auto N N N 6X6 mm 40-pin "Wettable"
HVQFN
MKW34A512VFT4 MW34A512V4 Auto N N Y 7X7 mm 48-pin "Wettable"
HVQFN
Related Resources
Type Description Resource
Product
Selector
The Product Selector lets you find the right Kinetis part for your design. W-Series Product Selector
Fact Sheet The Fact Sheet gives overview of the product key features and its uses. KW36-35-34 Fact Sheet
Reference
Manual
The Reference Manual contains a comprehensive description of the
structure and function (operation) of a device.
MKW36A512RM1
Data Sheet The Data Sheet includes electrical characteristics and signal
connections.
This document.
Chip Errata The chip mask set Errata provides additional or corrective information for
a particular device mask set.
KINETIS_W_1N41U1
Table continues on the next page...
2MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Related Resources (continued)
Type Description Resource
Package
drawing
Package dimensions are provided in package drawings. 40-pin "Wettable" HVQFN
(6x6): 98ASA01025D1
48-pin LQFN (7x7):
98ASA00694D1
48-pin "Wettable" HVQFN
(7x7): 98ASA01307D1
1. To find the associated resource, go to http://www.nxp.com and perform a search using this term.
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 3
NXP Semiconductors
Table of Contents
1 Introduction........................................................................... 5
2 Feature Descriptions.............................................................6
2.1 Block Diagram............................................................... 6
2.2 Radio features............................................................... 7
2.3 Microcontroller features................................................. 8
2.4 System features.............................................................10
2.5 Peripheral features........................................................ 12
2.6 Security Features...........................................................16
3 Transceiver Description........................................................ 17
3.1 Key Specifications......................................................... 18
3.2 Channel Map Frequency Plans .................................... 18
3.2.1 Channel Plan for Bluetooth Low Energy............18
3.2.2 Other Channel Plans ........................................ 20
3.3 Transceiver Functions................................................... 20
4 Transceiver Electrical Characteristics...................................20
4.1 Radio operating conditions............................................ 21
4.2 Receiver Feature Summary...........................................21
4.3 Transmit and PLL Feature Summary.............................23
5 System and Power Management..........................................28
5.1 Power Management.......................................................28
5.1.1 DC-DC Converter.............................................. 28
5.2 Modes of Operation....................................................... 29
5.2.1 Power modes.....................................................29
6 KW36A/35A/34A Electrical Characteristics...........................31
6.1 AC electrical characteristics...........................................31
6.2 Nonswitching electrical specifications............................32
6.2.1 Voltage and current operating requirements..... 32
6.2.2 LVD and POR operating requirements..............33
6.2.3 Voltage and current operating behaviors...........34
6.2.4 Power mode transition operating behaviors...... 35
6.2.5 Power consumption operating behaviors.......... 35
6.2.6 Diagram: Typical IDD_RUN operating behavior41
6.2.7 SoC Power Consumption.................................. 43
6.2.8 Designing with radiated emissions in mind........44
6.2.9 Capacitance attributes.......................................44
6.3 Switching electrical specifications..................................45
6.3.1 Device clock specifications................................45
6.3.2 General switching specifications....................... 45
6.4 Thermal specifications...................................................46
6.4.1 Thermal operating requirements....................... 46
6.4.2 Thermal attributes..............................................47
6.5 Peripheral operating requirements and behaviors.........47
6.5.1 Core modules.................................................... 47
6.5.2 System modules................................................ 48
6.5.3 Clock modules................................................... 49
6.5.4 Memories and memory interfaces..................... 53
6.5.5 Security and integrity modules.......................... 55
6.5.6 Analog............................................................... 56
6.5.7 Timers................................................................63
6.5.8 Communication interfaces................................. 63
6.5.9 Human-machine interfaces (HMI)......................68
6.6 DC-DC Converter Operating Requirements.................. 68
6.7 Ratings...........................................................................71
6.7.1 Thermal handling ratings................................... 71
6.7.2 Moisture handling ratings.................................. 71
6.7.3 ESD handling ratings.........................................71
6.7.4 Voltage and current operating ratings............... 72
7 Pin Diagrams and Pin Assignments......................................72
7.1 KW36A Signal Multiplexing and Pin Assignments.........72
7.2 KW36A Pinouts..............................................................75
7.3 KW35A Signal Multiplexing and Pin Assignments.........78
7.4 KW35A Pinouts..............................................................81
7.5 KW34A Signal Multiplexing and Pin Assignments.........83
7.6 KW34A Pinouts..............................................................86
7.7 Module Signal Description Tables................................. 87
7.7.1 Core Modules.................................................... 87
7.7.2 Radio Modules...................................................88
7.7.3 System Modules................................................ 89
7.7.4 Clock Modules................................................... 90
7.7.5 Analog Modules.................................................90
7.7.6 Timer Modules...................................................91
7.7.7 Communication Interfaces.................................92
7.7.8 Human-Machine Interfaces(HMI)...................... 93
8 Package Information............................................................. 94
8.1 Obtaining package dimensions......................................94
9 Part identification...................................................................94
9.1 Description.....................................................................94
9.2 Format........................................................................... 95
9.3 Fields............................................................................. 95
9.4 Example.........................................................................95
10 Revision History.................................................................... 96
4MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
1 Introduction
The KW36A/35A/34A wireless microcontrollers (MCU), which includes the KW36A,
KW35A, and KW34A families of devices, are highly integrated single-chip devices
that enable Bluetooth Low Energy (Bluetooth LE) and Generic FSK connectivity for
automotive embedded systems. To meet the stringent requirements of automotive
applications, the KW36A/35A/34A is fully AEC Q100 Grade 2 Automotive
Qualified. The target applications center on wirelessly bridging the embedded world
with mobile devices to enhance the human interface experience, share embedded data
between devices and the cloud and enable wireless firmware updates. Leading the
automotive applications is the Digital Key, where a smartphone can be used by the
owner as an alternative to the key FOB for unlocking and personalizing the driving
experience. For a car sharing experience, the owner can provide selective, temporary
authorization for access to the car allowing the authorized person to unlock, start and
operate the car using their mobile device using Bluetooth LE.
The KW36A/35A/34A Wireless MCU integrates an Arm® Cortex®-M0+ CPU with
up to 512 KB flash and 64 KB SRAM and a 2.4 GHz radio that supports Bluetooth LE
5.0 and Generic FSK modulations. The Bluetooth LE radio supports up to 8
simultaneous connections in any master/slave combination. The Medical Body Area
Network (MBAN) frequencies from 2.36 to 2.4 GHz are also supported enabling
wearable or implantable wireless medical devices.
The KW36A includes an integrated FlexCAN module enabling seamless integration
into a cars in-vehicle CAN communication network. The FlexCAN module can
support CAN’s flexible data-rate (CAN FD) protocol for increased bandwidth and
lower latency required by many automotive applications.
The KW36A/35A/34A devices can be used as a "BlackBox" modem in order to add
Bluetooth LE or Generic FSK connectivity to an existing host MCU or MPU
(microprocessor), or may be used as a standalone smart wireless sensor with
embedded application where no host controller is required.
The RF circuit of the KW36A/35A/34A is optimized to require very few external
components, achieving the smallest RF footprint possible on a printed circuit board.
Extremely long battery life is achieved through the efficiency of code execution in the
Cortex-M0+ CPU core and the multiple low power operating modes of the
KW36A/35A/34A. For power critical applications, an integrated DC-DC converter
enables operation from a single coin cell or Li-ion battery with a significant reduction
of peak receive and transmit current consumption.
Introduction
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 5
NXP Semiconductors
2 Feature Descriptions
This section provides a simplified block diagram and highlights the KW36A/35A/34A
features.
2.1 Block Diagram
DCDC
VDCDC_IN
Crossbar-Lite Switch (AXBS)
SRAM
Flash
Arm Cortex M0+ Core
NVIC WIC
IOPORT
DAP
MTB
GPIO BME
Flash AIPS-Lite
MDM
DWT
RTC
LPTMR
PIT
SIM
RCM
PMC
SMC LPUART x2
ADC
Unified Bus
M0
S0
S1
Serial Wire Debug
IPS
AHBLite
S2
Controller
IPS
256 KB
FlexNVM
32K Osc
MCG
FLL IRC
32 kHz
IRC
4 MHz
DMA MUX
4ch DMA
AHBLite
CMP
FlexCAN
TPM x3
32M Osc
VREF
I2C x2
CMT
256 KB
64 KByte
TRNG
APB
SPI x2
M2A
Radio
LTC(AESA)
8 KB
FlexRAM
Figure 1. KW36 Detailed Block Diagram
Feature Descriptions
6MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
DCDC
VDCDC_IN
Crossbar-Lite Switch (AXBS)
SRAM
Flash
Arm Cortex M0+ Core
NVIC WIC
IOPORT
DAP
MTB
GPIO BME
Flash AIPS-Lite
MDM
DWT
RTC
LPTMR
PIT
SIM
RCM
PMC
SMC LPUART
ADC
Unified Bus
M0
S0
S1
Serial Wire Debug
IPS
AHBLite
S2
Controller
IPS
Prg Acc RAM
8 KB
32K Osc
MCG
FLL IRC
32 kHz
IRC
4 MHz
DMA MUX
4ch DMA
AHBLite
CMP TPM x3
32M Osc
VREF
I2C x2
CMT
512 KB
64 KByte
TRNG
APB
SPI x2
M2A
Radio
LTC(AESA)
Figure 2. KW35 Detailed Block Diagram
DCDC
VDCDC_IN
Crossbar-Lite Switch (AXBS)
SRAM
Flash
Arm Cortex M0+ Core
NVIC WIC
IOPORT
DAP
MTB
GPIO BME
Flash AIPS-Lite
MDM
DWT
RTC
LPTMR
PIT
SIM
RCM
PMC
SMC LPUART
ADC
Unified Bus
M0
S0
S1
Serial Wire Debug
IPS
AHBLite
S2
Controller
IPS
FlexNVM
256 KB
FlexRAM
8 KB
32K Osc
MCG
FLL IRC
32 kHz
IRC
4 MHz
DMA MUX
4ch DMA
AHBLite
CMP TPM x3
32M Osc
VREF
I2C x2
CMT
256 KB
64 KByte
TRNG
APB
SPI x2
M2A
Radio
LTC(AESA)
Figure 3. KW34 Detailed Block Diagram
2.2 Radio features
Operating frequencies:
2.4 GHz ISM band (2400-2483.5 MHz)
Medical Body Area Network (MBAN) 2360-2400 MHz
Supported standards:
Feature Descriptions
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 7
NXP Semiconductors
Bluetooth Low Energy Version 5.0 compliant radio
Generic FSK modulation supporting data rates up to 1 Mbit/s
Support for up to 8 simultaneous Bluetooth LE hardware connections in any
master, slave combination
Bluetooth LE Application Profiles
Receiver performance:
Receive sensitivity of up to –95 dBm for Bluetooth LE
Receive sensitivity of up to –99 dBm for a 250 kbit/s GFSK mode with a
modulation index of 0.5. Receive sensitivity in Generic FSK modes depends on
mode selection and data rate.
Other features:
Programmable transmit output power from –30 dBm to +5 dBm
26 MHz and 32 MHz crystals supported for Bluetooth LE and Generic FSK modes
Bluetooth Low Energy version 5.0 Link Layer hardware with 1 Mbit/s PHY
support
Hardware acceleration for Generic FSK packet processing
Generic FSK modulation at 250, 500 and 1000 kbit/s
Supports 8 simultaneous Bluetooth LE connections in any master/slave
combination
Enhanced Bluetooth LE automatic deep sleep modes (DSM) supporting Slave
Latency
Up to 26 devices supported by whitelist in hardware
Up to 8 private resolvable addresses supported in hardware
Supports DMA capture of IQ data with sampling rate of up to 2 MHz, when using a
32 MHz crystal
Integrated on-chip balun
Single ended bidirectional RF port shared by transmit and receive
Low external component count
Supports transceiver range extension using external PA and/or LNA
2.3 Microcontroller features
Arm Cortex-M0+ CPU
Up to 48 MHz CPU
Feature Descriptions
8MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
As compared to Cortex-M0, the Cortex-M0+ uses an optimized 2-stage pipeline
microarchitecture for reduced power consumption and improved architectural
performance (cycles per instruction)
Supports up to 32 interrupt request sources
Binary compatible instruction set architecture with the Cortex-M0 core
Thumb instruction set combines high code density with 32-bit performance
Serial Wire Debug (SWD) reduces the number of pins required for debugging
Micro Trace Buffer (MTB) provides lightweight program trace capabilities using
system RAM as the destination memory
Nested Vectored Interrupt Controller (NVIC)
32 vectored interrupts, 4 programmable priority levels
Includes a single non-maskable interrupt
Wake-up Interrupt Controller (WIC)
Supports interrupt handling when system clocking is disabled in low-power
modes
Takes over and emulates the NVIC behavior when correctly primed by the NVIC
on entry to very-deep-sleep
A rudimentary interrupt masking system with no prioritization logic signals for
wake-up as soon as a non-masked interrupt is detected
Debug Controller
Two-wire Serial Wire Debug (SWD) interface
Hardware breakpoint unit for 2 code addresses
Hardware watchpoint unit for 2 data items
Micro Trace Buffer for program tracing
On-Chip Memory
Up to 512 KB Flash
KW36A/34A contains 256 KB program flash with ECC and 256 KB
FlexNVM.
KW35A contains 512 KB program flash with ECC.
Flash implemented as two equal blocks each of 256 KB block. Code can
execute or read from one block while the other block is being erased or
programmed on KW35A only.
Firmware distribution protection. Program flash can be marked execute-only
on a per-sector (8 KB) basis to prevent firmware contents from being read by
third parties.
Feature Descriptions
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 9
NXP Semiconductors
64 KB SRAM
KW36A/34A contains 8 KB FlexRAM.
KW35A contains 8 KB program acceleration RAM.
Security circuitry to prevent unauthorized access to RAM and flash contents
through the debugger
2.4 System features
Power Management Control Unit (PMC)
Programmable power saving modes
Available wake-up from power saving modes via internal and external sources
Integrated Power-on Reset (POR)
Integrated Low Voltage Detect (LVD) with reset (brownout) capability
Selectable LVD trip points
Programmable Low Voltage Warning (LVW) interrupt capability
Individual peripheral clocks can be gated off to reduce current consumption
Internal Buffered bandgap reference voltage
Factory programmed trim for bandgap and LVD
1 kHz Low-power Oscillator (LPO)
DC-DC Converters
Internal switched mode power supply supporting Buck and Bypass operating
modes
Buck operation supports external voltage sources of 2.1 V to 3.6 V
When DC-DC is not used, the device supports an external voltage range of 1.5 V to
3.6 V (1.5 - 3.6 V on VDD_RF1, VDD_RF2, VDD_RF3 and
VDD_1P5OUT_PMCIN pins. 1.71 - 3.6 V on VDD_0, VDD_1, and VDDA pins)
An external inductor is required to support the Buck mode
Direct Memory Access (DMA) Controller
All data movement via dual-address transfers: read from source, write to
destination
Programmable source and destination addresses and transfer size
Support for enhanced addressing modes
4-channel implementation that performs complex data transfers with minimal
intervention from a host processor
Internal data buffer, used as temporary storage to support 16- and 32-byte transfers
Connections to the crossbar switch for bus mastering the data movement
Feature Descriptions
10 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Transfer Control Descriptor (TCD) organized to support two-deep, nested transfer
operations
32-byte TCD stored in local memory for each channel
An inner data transfer loop defined by a minor byte transfer count
An outer data transfer loop defined by a major iteration count
Channel activation via one of three methods:
Explicit software initiation
Initiation via a channel-to-channel linking mechanism for continuous
transfers
Peripheral-paced hardware requests, one per channel
Fixed-priority and round-robin channel arbitration
Channel completion reported via optional interrupt requests
One interrupt per channel, optionally asserted at completion of major iteration
count
Optional error terminations per channel and logically summed together to form
one error interrupt to the interrupt controller
Optional support for scatter/gather DMA processing
Support for complex data structures
DMA Channel Multiplexer (DMA MUX)
4 independently selectable DMA channel routers
2 periodic trigger sources available
Each channel router can be assigned to 1 of the peripheral DMA sources
COP Watchdog Module
Independent clock source input (independent from CPU/bus clock)
Choice between two clock sources
LPO oscillator
Bus clock
System Clocks
Both 26 MHz and 32 MHz crystal reference oscillator supported for Bluetooth LE
and Generic FSK modes
MCU can derive its clock either from the crystal reference oscillator or the
Frequency-locked Loop (FLL)1
32.768 kHz crystal reference oscillator used to maintain precise Bluetooth Low
Energy timing in low-power modes
Multipurpose Clock Generator (MCG)
1. Clock options can have restrictions based on the chosen SoC configuration.
Feature Descriptions
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 11
NXP Semiconductors
Internal reference clocks — Can be used as a clock source for other on-chip
peripherals
On-chip RC oscillator range of 31.25 kHz to 39.0625 kHz with 2% accuracy
across full temperature range
On-chip 4 MHz oscillator with 5% accuracy across full temperature range
Frequency-locked Loop (FLL) controlled by internal or external reference
20 MHz to 48 MHz FLL output
Unique Identifiers
80-bit Unique ID represents a unique identifier for each chip
40-bit unique Media Access Control (MAC) address, which can be used to build a
unique 48-bit Bluetooth Low Energy MAC address
2.5 Peripheral features
16-bit Analog-to-Digital Converter (ADC)
Linear successive approximation algorithm with 16-bit resolution
Output formatted in differential-ended 16-, 13-, 11-, and 9-bit mode
Output formatted in single-ended 16-, 12-, 10-, and 8-bit mode
Single or continuous conversion
Configurable sample time and conversion speed/power
Conversion rates in 16-bit mode with no averaging up to ~500Ksamples/sec
Input clock selection
Operation in low-power modes for lower noise operation
Asynchronous clock source for lower noise operation
Selectable asynchronous hardware conversion trigger
Automatic compare with interrupt for less-than, or greater than, or equal to
programmable value
Temperature sensor
Battery voltage measurement
Hardware average function
Selectable voltage reverence
Self-calibration mode
High-Speed Analog Comparator (CMP)
6-bit DAC programmable reference generator output
Up to eight selectable comparator inputs; each input can be compared with any
input by any polarity sequence
Feature Descriptions
12 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Selectable interrupt on rising edge, falling edge, or either rising or falling edges of
comparator output
Two performance modes:
Shorter propagation delay at the expense of higher power
Low-power, with longer propagation delay
Operational in all MCU power modes except VLLS0 mode
Voltage Reference(VREF1)
Programmable trim register with 0.5 mV steps, automatically loaded with factory
trimmed value upon reset
Programmable buffer mode selection:
Off
Bandgap enabled/standby (output buffer disabled)
High-power buffer mode (output buffer enabled)
1.2 V output at room temperature
VREF_OUT output signal
Low-power Timer (LPTMR)
One channel
Operation as timer or pulse counter
Selectable clock for prescaler/glitch filter
1 kHz internal LPO
External low-power crystal oscillator
Internal reference clock
Configurable glitch filter or prescaler
Interrupt generated on timer compare
Hardware trigger generated on timer compare
Functional in all power modes
Timer/PWM (TPM)
TPM0: 4 channels, TPM1 and TPM2: 2 channels each
Selectable source clock
Programmable prescaler
16-bit counter supporting free-running or initial/final value, and counting is up or
up-down
Input capture, output compare, and edge-aligned and center-aligned PWM modes
Input capture and output compare modes
Generation of hardware triggers
TPM1 and TPM2: Quadrature decoder with input filters
Global time base mode shares single time base across multiple TPM instances
Feature Descriptions
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 13
NXP Semiconductors
Programmable Interrupt Timer (PIT)
Up to 2 interrupt timers for triggering ADC conversions
32-bit counter resolution
Clocked by bus clock frequency
Real-Time Clock (RTC)
32-bit seconds counter with 32-bit alarm
Can be invalidated on detection of tamper detect
16-bit prescaler with compensation
Register write protection
Hard Lock requires MCU POR to enable write access
Soft lock requires POR or software reset to enable write/read access
Capable of waking up the system from low-power modes
Inter-Integrated Circuit (I2C)
Two channels
Compatible with I2C bus standard and SMBus Specification Version 2 features
Up to 400 kHz operation
Multi-master operation
Software programmable for one of 64 different serial clock frequencies
Programmable slave address and glitch input filter
Interrupt driven byte-by-byte data transfer
Arbitration lost interrupt with automatic mode switching from master to slave
Calling address identification interrupt
Bus busy detection broadcast and 10-bit address extension
Address matching causes wake-up when processor is in low-power mode
LPUART
One channel (2 channels on KW36A)
Full-duplex operation
Standard mark/space Non-return-to-zero (NRZ) format
13-bit baud rate selection with fractional divide of 32
Programmable 8-bit or 9-bit data format
Programmable 1 or 2 stop bits
Separately enabled transmitter and receiver
Programmable transmitter output polarity
Programmable receive input polarity
13-bit break character option
11-bit break character detection option
Feature Descriptions
14 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
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Two receiver wake-up methods:
Idle line wake-up
Address mark wake-up
Address match feature in receiver to reduce address mark wake-up ISR overhead
Interrupt or DMA driven operation
Receiver framing error detection
Hardware parity generation and checking
Configurable oversampling ratio to support from 1/4 to 1/32 bit-time noise
detection
Operation in low-power modes
Hardware Flow Control RTS\CTS
Functional in Stop/VLPS modes
Break detect supporting LIN
Serial Peripheral Interface (SPI)
Two independent SPI channels
Master and slave mode
Full-duplex, three-wire synchronous transfers
Programmable transmit bit rate
Double-buffered transmit and receive data registers
Serial clock phase and polarity options
Slave select output
Control of SPI operation during wait mode
Selectable MSB-first or LSB-first shifting
Support for both transmit and receive by DMA
Carrier Modulator Timer (CMT)
Four modes of operation
Time; with independent control of high and low times
Baseband
Frequency shift key (FSK)
Direct software control of CMT_IRO signal
Extended space operation in time, baseband, and FSK modes
Selectable input clock divider
Interrupt on end of cycle
Ability to disable CMT_IRO signal and use as timer interrupt
General Purpose Input/Output (GPIO)
Hysteresis and configurable pull up device on all input pins
Independent pin value register to read logic level on digital pin
Feature Descriptions
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 15
NXP Semiconductors
All GPIO pins can generate IRQ and wake-up events
Configurable drive strength on some output pins
GPIO can be configured to function as a interrupt driven keyboard scanning matrix
In the 48-pin package there are a total of 25 digital pins
In the 40-pin package there are a total of 18 digital pins
FlexCAN (for KW36A only)
Full implementation of the CAN with Flexible Data Rate (CAN FD) protocol
specification and CAN protocol specification, Version 2.0 B
Flexible Message Buffers (MBs); there are total 32 MBs of 8 bytes data length
each, configurable as Rx or Tx, all supporting standard and extended messages
Programmable clock source to the CAN Protocol Interface, either peripheral clock
or oscillator clock
Capability to select priority between mailboxes and Rx FIFO during matching
process
Powerful Rx FIFO ID filtering, capable of matching incoming IDs against either
128 extended, 256 standard, or 512 partial (8 bit) IDs, with up to 32 individual
masking capability
2.6 Security Features
Advanced Encryption Standard Accelerator(AES-128 Accelerator)
The Advanced Encryption Standard Accelerator (AESA) module is a standalone
hardware coprocessor capable of accelerating the 128-bit advanced encryption standard
(AES) cryptographic algorithms.
The AESA engine supports the following cryptographic features.
LTC includes the following features:
Cryptographic authentication
Message Authentication Codes (MAC)
Cipher-based MAC (AES-CMAC)
Extended cipher block chaining message authentication code (AES-
XCBC-MAC)
Auto padding
Integrity Check Value(ICV) checking
Authenticated encryption algorithms
Counter with CBC-MAC (AES-CCM)
Symmetric key block ciphers
Feature Descriptions
16 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
AES (128-bit keys)
Cipher modes:
AES-128 modes
Electronic Codebook (ECB)
Cipher Block Chaining (CBC)
Counter (CTR)
Secure scan
True Random Number Generator (TRNG)
True Random Number Generator (TRNG) is a hardware accelerator module that
constitutes a high-quality entropy source.
TRNG generates a 512-bit (4x 128-bit) entropy as needed by an entropy-
consuming module, such as a deterministic random number generator.
TRNG output can be read and used by a deterministic pseudo-random number
generator (PRNG) implemented in software.
TRNG-PRNG combination achieves NIST-compliant true randomness and
cryptographic-strength random numbers using the TRNG output as the entropy
source.
A fully FIPS 180 compliant solution can be realized using the TRNG together
with a FIPS-compliant deterministic random number generator and the SoC-level
security.
Flash Memory Protection
The on-chip flash memory controller enables the following useful features:
Program flash protection scheme prevents accidental program or erase of stored
data.
Automated, built-in, program and erase algorithms with verify.
Read access to one program flash block is possible while programming or erasing
data in the other program flash block.
3Transceiver Description
Direct Conversion Receiver (Zero IF)
Constant Envelope Transmitter
2.36 GHz to 2.483 GHz PLL Range
Low Transmit and Receive Current Consumption
Low BOM
Transceiver Description
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 17
NXP Semiconductors
3.1 Key Specifications
KW36A/35A/34A meets or exceeds all Bluetooth Low Energy version 5.0 performance
specifications. The key specifications for the KW36A/35A/34A are:
Frequency Band:
ISM Band: 2400 to 2483.5 MHz
MBAN Band: 2360 to 2400 MHz
Bluetooth Low Energy version 5.0 modulation scheme:
Symbol rate: 1000 kbit/s
Modulation: GFSK
Receiver sensitivity: –95 dBm, typical
Programmable transmitter output power: –30 dBm to +5 dBm
Generic FSK modulation scheme:
Symbol rate: 250, 500 and 1000 kbit/s
Modulation(s): GFSK (modulation index = 0.32, 0.5, 0.7 and 1.0, BT =0.3, 0.5, and
0.7), FSK and MSK
Receiver Sensitivity: Mode and data rate dependent. –99 dBm typical for GFSK
(r=250 kbit/s, BT = 0.5, h = 0.5)
3.2 Channel Map Frequency Plans
3.2.1 Channel Plan for Bluetooth Low Energy
This section describes the frequency plan / channels associated with 2.4 GHz ISM and
MBAN bands for Bluetooth Low Energy.
2.4 GHz ISM Channel numbering:
Fc=2402 + k * 2 MHz, k=0,.........,39.
MBAN Channel numbering:
Fc=2360 + k in MHz, for k=0,.....,39
Transceiver Description
18 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
where k is the channel number.
Table 1. 2.4 GHz ISM and MBAN frequency plan and channel designations
2.4 GHz ISM1MBAN22.4GHz ISM + MBAN
Channel Freq (MHz) Channel Freq (MHz) Channel Freq (MHz)
0 2402 0 2360 28 2390
1 2404 1 2361 29 2391
2 2406 2 2362 30 2392
3 2408 3 2363 31 2393
4 2410 4 2364 32 2394
5 2412 5 2365 33 2395
6 2414 6 2366 34 2396
7 2416 7 2367 35 2397
8 2418 8 2368 36 2398
9 2420 9 2369 0 2402
10 2422 10 2370 1 2404
11 2424 11 2371 2 2406
12 2426 12 2372 3 2408
13 2428 13 2373 4 2410
14 2430 14 2374 5 2412
15 2432 15 2375 6 2414
16 2434 16 2376 7 2416
17 2436 17 2377 8 2418
18 2438 18 2378 9 2420
19 2440 19 2379 10 2422
20 2442 20 2380 11 2424
21 2444 21 2381 12 2426
22 2446 22 2382 13 2428
23 2448 23 2383 14 2430
24 2450 24 2384 15 2432
25 2452 25 2385 16 2434
26 2454 26 2386 17 2436
27 2456 27 2387 18 2438
28 2458 28 2388 19 2440
29 2460 29 2389 20 2442
30 2462 30 2390 21 2444
31 2464 31 2391 22 2446
32 2466 32 2392 23 2448
33 2468 33 2393 24 2450
34 2470 34 2394 25 2452
Table continues on the next page...
Transceiver Description
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 19
NXP Semiconductors
Table 1. 2.4 GHz ISM and MBAN frequency plan and channel designations (continued)
2.4 GHz ISM1MBAN22.4GHz ISM + MBAN
Channel Freq (MHz) Channel Freq (MHz) Channel Freq (MHz)
35 2472 35 2395 26 2454
36 2474 36 2396 27 2456
37 2476 37 2397 37 2476
38 2478 38 2398 38 2478
39 2480 39 2399 39 2480
1. ISM frequency of operation spans from 2400.0 MHz to 2483.5 MHz
2. Per FCC guideline rules, Bluetooth Low Energy single mode operation is allowed in these channels.
3.2.2 Other Channel Plans
The RF synthesizer can be configured to use any channel frequency between 2.36 and
2.487 GHz.
3.3 Transceiver Functions
Receive
The receiver architecture is Zero IF (ZIF) where the received signal after passing
through RF front end is down-converted to a baseband signal. The signal is filtered and
amplified before it is fed to analog-to-digital converter. The digital signal then
decimates to a baseband clock frequency before it digitally processes, demodulates and
passes on to packet processing/link-layer processing.
Transmit
The transmitter transmits GFSK/FSK modulation having power and channel selection
adjustment per user application. After the channel of operation is determined, coarse
and fine-tuning is executed within the Frac-N PLL to engage signal lock. After signal
lock is established, the modulated buffered signal is routed to a multi-stage amplifier for
transmission..
4Transceiver Electrical Characteristics
Transceiver Electrical Characteristics
20 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
4.1 Radio operating conditions
Table 2. Radio operating conditions
Characteristic Symbol Min Typ Max Unit
Input Frequency fin 2.360 2.480 GHz
Ambient Temperature Range TA–40 25 105 °C
Maximum RF Input Power Pmax 10 dBm
Crystal Reference Oscillator Frequency
1
fref 26 MHz or 32 MHz
1. The recommended crystal accuracy is ±40 ppm including initial accuracy, mechanical, temperature, and aging factors.
4.2 Receiver Feature Summary
Table 3. Top-Level Receiver Specifications (TA=25 °C, nominal process unless otherwise
noted)
Characteristic1Symbol Min. Typ. Max. Unit
Supply current power down on VDD_RFx supplies Ipdn 200 1000 nA
Supply current Rx On with DC-DC converter enable
(Buck; VDCDC_IN = 3.6 V, VDD_1P5_buck=1.5 V) , 2IRxon 6.3 mA
Supply current Rx On with DC-DC converter disabled
(Bypass) 2IRxon 17.2 mA
Input RF Frequency fin 2.360 2.4835 GHz
GFSK Rx Sensitivity(250 kbit/s GFSK-BT=0.5, h=0.5) SENSGFSK –99 dBm
Bluetooth LE Rx Sensitivity 3SENSBLE –95 dBm
Noise Figure for maximum gain mode @ typical
sensitivity
NFHG 7.5 dB
Receiver Signal Strength Indicator Range4RSSIRange –100 55dBm
Receiver Signal Strength Indicator Resolution RSSIRes 1 dB
Typical RSSI variation over frequency –2 2 dB
Typical RSSI variation over temperature –2 2 dB
Narrowband RSSI accuracy6RSSIAcc –3 3 dB
Bluetooth LE Co-channel Interference (Wanted signal at
–67 dBm, BER <0.1%. Measurement resolution 1
MHz).
–7 dB
Adjacent/Alternate Channel Performance7
Bluetooth LE Adjacent +/–1 MHz Interference offset
(Wanted signal at –67 dBm, BER <0.1%. Measurement
resolution 1 MHz.)
SELBLE, 1 MHz 2 dB
Table continues on the next page...
Transceiver Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 21
NXP Semiconductors
Table 3. Top-Level Receiver Specifications (TA=25 °C, nominal process unless otherwise
noted) (continued)
Characteristic1Symbol Min. Typ. Max. Unit
Bluetooth LE Adjacent +/–2 MHz Interference offset
(Wanted signal at –67 dBm, BER <0.1%. Measurement
resolution 1 MHz.)
SELBLE, 2 MHz 43 dB
Bluetooth LE Alternate +/–3 MHz Interference offset
(Wanted signal at –67 dBm, BER <0.1%. Measurement
resolution 1 MHz.)
SELBLE, 3 MHz 50 dB
Bluetooth LE Alternate ≥ +/–4 MHz Interference offset
(Wanted signal at –67 dBm, BER <0.1%. Measurement
resolution 1 MHz.)
SELBLE, 4+ MHz 50 dB
Intermodulation Performance
Bluetooth LE Intermodulation with continuous wave
interferer at ± 3 MHz and modulated interferer is at ± 6
MHz (Wanted signal at –67 dBm, BER<0.1%.)
–23 dBm
Bluetooth LE Intermodulation with continuous wave
interferer at ±5 MHz and modulated interferer is at ±10
MHz (Wanted signal at –67 dBm, BER<0.1%.)
–24 dBm
Blocking Performance
Bluetooth LE Out of band blocking from 30 MHz to 1000
MHz and 4000 MHz to 5000 MHz (Wanted signal at –67
dBm, BER<0.1%. Interferer continuous wave signal.)8
–2 dBm
Bluetooth LE Out of band blocking from 1000 MHz to
2000 MHz and 3000 MHz to 4000 MHz (Wanted signal
at –67 dBm, BER<0.1%. Interferer continuous wave
signal.)
–8.4 dBm
Bluetooth LE Out of band blocking from 2001 MHz to
2339 MHz and 2484 MHz to 2999 MHz (Wanted signal
at –67 dBm, BER<0.1%. Interferer continuous wave
signal.)9
–17 dBm
Bluetooth LE Out of band blocking from 5000 MHz to
12750 MHz (Wanted signal at –67 dBm, BER<0.1%.
Interferer continuous wave signal.)9
10 dBm
Spurious Emission < 1.6 MHz offset (Measured with
100 kHz resolution and average detector. Device
transmit on RF channel with center frequency fc and
spurious power measured in 1 MHz at RF frequency f),
where |f-fc|< 1.6 MHz
–54 dBc
Spurious Emission > 2.5 MHz offset (Measured with
100 kHz resolution and average detector. Device
transmit on RF channel with center frequency fc and
spurious power measured in 1 MHz at RF frequency f),
where |f-fc|> 2.5 MHz10
–70 dBc
1. All the Rx parameters are measured at the KW36A/35A/34A RF pins.
2. Transceiver power consumption.
3. Measured at 0.1% BER using 37 byte long packets in maximum gain mode and nominal conditions.
4. Narrow-band RSSI mode.
5. With RSSI_CTRL_0.RSSI_ADJ field calibrated to account for antenna to RF input losses.
6. With one point calibration over frequency and temperature.
Transceiver Electrical Characteristics
22 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
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7. Bluetooth LE adjacent and alternate selectivity performance is measured with modulated interference signals.
8. Exceptions allowed for carrier frequency sub harmonics.
9. Exceptions allowed for carrier frequency harmonics.
10. Exceptions allowed for twice the reference clock frequency(fref) multiples.
Table 4. Receiver Specifications with Generic FSK Modulations
Adjacent/Alternate Channel Selectivity (dB)1
Modulation
Type
Data
Rate
(kbit/s)
Channel
BW (kHz)
Typical
Sensitivity
(dBm)
Desired
signal
level
(dBm)
Interferer
at –/+1*
channel
BW
offset
Interferer
at –/+ 2*
channel
BW
offset
Interferer
at –/+ 3*
channel
BW
offset
Interferer
at –/+ 4*
channel
BW
offset
Co-
channel
GFSK BT =
0.5, h=0.5
1000 2000 –95 –67 43 50 55 50 –7
500 1000 –97 –85 40 50 55 55 –7
250 500 –99 –85 30 40 50 50 –7
GFSK, BT =
0.5, h=0.3
1000 1000 –89 –67 10 38 42 47 –10
500 800 –92 –85 22 31 37 42 –10
250 500 –93 –85 20 25 30 34 –13
GFSK, BT =
0.5, h=0.7
1000 2000 –97 –85 45 50 57 60 –7
500 1000 –98 –85 40 50 55 55 –7
250 600 –99 –85 30 40 50 50 –7
GMSK
BT=0.3
1000 1600 –91 –85 40 46 53 55 –8
500 800 –93 –85 35 46 50 53 –7
250 500 –95 –85 30 40 40 50 –7
GMSK, BT =
0.7
1000 2000 –96 –85 44 53 57 60 –7
500 1000 –97 –85 40 50 55 55 –7
250 600 –99 –85 30 40 50 50 –7
Generic
MSK
1000 3000 –96 –85 43 53 60 63 –7
500 1600 –97 –85 43 50 60 60 –8
250 800 –99 –85 35 45 55 55 –7
GFSK
BT=0.5, h=1
1000 3000 –96 –85 45 55 55 59 –8
500 1400 –97 –85 40 45 50 50 –8
250 800 –98 –85 35 45 45 50 –8
1. Selectivity measured with an unmodulated blocker except for GFSK BT=0.5, h=0.5 1 Mbit/s and GFSK BT=0.5,
h=0.32 1 Mbit/s. The desired signal is set at –85 dBm.
4.3 Transmit and PLL Feature Summary
Supports constant envelope modulation of 2.4 GHz ISM and 2.36 GHz MBAN
frequency bands
Fast PLL Lock time: < 25 µs
Reference Frequency:
Transceiver Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 23
NXP Semiconductors
26 MHz and 32 MHz crystals supported for Bluetooth LE and Generic FSK
modes
Table 5. Top-Level Transmitter Specifications (TA=25 °C, nominal process unless otherwise
noted)
Characteristic1Symbol Min. Typ. Max. Unit
Supply current power down on VDD_RFx supplies Ipdn 200 nA
Supply current Tx On with PRF = 0 dBm and DC-DC
converter enabled (Buck; VDDDCDC_in = 3.6 V,
VDD_1P5_buck=1.5 V) , 2
ITxone 5.7 mA
Supply current Tx On with PRF = 0 dBm and DC-DC
converter disabled (Bypass) 2ITxond 16 mA
Supply current Tx On with PRF = +3.5 dBm and DC-DC
converter enabled (Buck; VDDDCDC_in = 3.6 V,
VDD_1P5_buck=1.5 V)2
ITX3.5dBm 6.9 mA
Supply current Tx On with PRF = +3.5 dBm and DC-DC
converter disabled (Bypass)2ITX3.5dBmb 19 mA
Supply current Tx On with PRF = +5 dBm and DC-DC
converter enabled (Buck; VDDDCDC_in = 3.6 V,
VDD_1P5_buck=1.55 V, LDO-HF bumped)2, 3
ITX5dBm 8.0 mA
Supply current Tx On with PRF = +5 dBm and DC-DC
converter disabled (Bypass, LDO-HF bumped)2, 3ITX5dBmb 21 mA
Output RF Frequency fRFout 2.360 2.4835 GHz
Maximum RF Output Power; LDO-HF bumped 4PRF,maxV +5 dBm
Maximum RF Output power, nominal power supply 5PRF,maxn +3.5 dBm
Minimum RF Output power, nominal power supply 5PRF,minn –30 dBm
RF Output power control range PRFCR 34 dB
Bluetooth LE Tx Output Spectrum 20dB BW TXBWBLE 1.0 MHz
Bluetooth LE average frequency deviation using a
00001111 modulation sequence
Δf1avg,BLE 250 kHz
Bluetooth LE average frequency deviation using a
01010101 modulation sequence
Δf2avg,BLE 220 kHz
Bluetooth LE RMS FSK Error FSKerr,BLE 3%
Bluetooth LE Maximum Deviation of the Center
Frequency6Fcdev,BLE ±3 kHz
Bluetooth LE Adjacent Channel Transmit Power at 2
MHz offset7PRF2MHz,BLE –55 dBm
Bluetooth LE Adjacent Channel Transmit Power at >= 3
MHz offset7PRF3MHz,BLE –59 dBm
Bluetooth LE Frequency Hopping Support YES
Second Harmonic of Transmit Carrier Frequency (Pout =
PRF,max), 8TXH2 –46 dBm/MHz
Third Harmonic of Transmit Carrier Frequency (Pout =
PRF,max)8TXH3 –58 dBm/MHz
1. All the Tx parameters are measured at test hardware SMA connector.
2. Transceiver power consumption.
Transceiver Electrical Characteristics
24 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
3. VDD_RFx shall be equal to or higher than 1.55 V to support a TX Pout of +5 dBm.
4. Measured at KW36A/35A/34A RF pins, with BB_LDO_HF_TRIM=1.44 V.
5. Measured at the KW36A/35A/34A RF pins.
6. Maximum drift of carrier frequency of the PLL during a Bluetooth LE packet with a nominal 32 MHz reference crystal.
7. Measured at Pout = +5 dBm and recommended Tx match.
8. Harmonic levels based on recommended 2 component match. Transmit harmonic levels depend on the quality of
matching components. Additional harmonic margin using a third matching component (1x shunt capacitor) is possible.
Transmit PA driver output as a function of the PA_POWER[5:0] field when measured
at the IC pins is as follows:
Figure 4. TX Pout (dBm) as function TX-PA Power Code for default LDO-HF
Table 6. Transmit Output Power as a function of PA_POWER[5:0] with default LDO-HF
TX Pout (dBm)1
PA_POWER[5:0] T = –40 °C T = 25 °C T = 105 °C
1 –30.1 –31.1 –32.6
2 –24.0 –25.0 –26.4
4 –17.9 –19.0 –20.4
6 –14.5 –15.6 –17.0
8 –12.0 –13.1 –14.5
10 –10.1 –11.2 –12.6
12 –8.5 –9.6 –11.0
14 –7.2 –8.3 –9.7
16 –6.1 –7.2 –8.6
Table continues on the next page...
Transceiver Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 25
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Table 6. Transmit Output Power as a function of PA_POWER[5:0] with default LDO-HF
(continued)
TX Pout (dBm)1
PA_POWER[5:0] T = –40 °C T = 25 °C T = 105 °C
18 –5.1 –6.2 –7.6
20 –4.2 –5.3 –6.7
22 –3.4 –4.5 –5.9
24 –2.7 –3.8 –5.2
26 –2.0 –3.1 –4.5
28 –1.4 –2.5 –3.9
30 –0.8 –1.9 –3.3
32 –0.3 –1.4 –2.8
34 0.2 –1.0 –2.4
36 0.6 –0.5 –1.9
38 1.1 –0.1 –1.5
40 1.5 0.3 –1.1
42 1.9 0.7 –0.7
44 2.2 1.1 –0.3
46 2.6 1.4 0.0
48 2.9 1.8 0.3
50 3.2 2.1 0.6
52 3.5 2.4 0.9
54 3.7 2.6 1.2
56 3.9 2.9 1.5
58 4.2 3.1 1.7
60 4.4 3.3 1.9
62 4.5 3.5 2.1
1. Tx continuous wave power output at the RF pins with the recommended matching components mounted on PCB.
Transceiver Electrical Characteristics
26 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Figure 5. TX Pout (dBm) as a function of TX-PA Power Code for LDO-HF bumped
Table 7. Transmit Output Power as a function of PA_POWER[5:0] with LDO-HF Bumped
TX Pout (dBm)1
PA_POWER[5:0] T = –40 °C T = 25 °C T = 105 °C
1 –28.5 –29.6 –30.4
2 –22.4 –23.4 –24.2
4 –16.4 –17.5 –18.3
6 –12.9 –13.9 –14.8
8 –10.4 –11.5 –12.3
10 –8.5 –9.5 –10.4
12 –6.9 –8.0 –8.8
14 –5.6 –6.6 –7.5
16 –4.4 –5.5 –6.3
18 –3.4 –4.5 –5.3
20 –2.5 –3.6 –4.4
22 –1.7 –2.8 –3.6
24 –0.9 –2.0 –2.9
26 –0.3 –1.4 –2.2
28 0.4 –0.7 –1.6
30 1.0 –0.1 –1.0
32 1.4 0.3 –0.5
Table continues on the next page...
Transceiver Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 27
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Table 7. Transmit Output Power as a function of PA_POWER[5:0] with LDO-HF Bumped
(continued)
TX Pout (dBm)1
PA_POWER[5:0] T = –40 °C T = 25 °C T = 105 °C
34 2.0 0.9 0.0
36 2.4 1.3 0.4
38 2.9 1.8 0.9
40 3.3 2.2 1.3
42 3.7 2.6 1.7
44 4.1 3.0 2.1
46 4.5 3.4 2.5
48 4.8 3.7 2.8
50 5.2 4.0 3.1
52 5.5 4.4 3.4
54 5.8 4.6 3.7
56 6.0 4.9 4.0
58 6.3 5.2 4.2
60 6.5 5.4 4.5
62 6.7 5.6 4.7
1. Tx continuous wave power output at the RF pins with the recommended matching components mounted on PCB.
5 System and Power Management
5.1 Power Management
The KW36A/35A/34A includes internal power management features that can be used to
control the power usage. The power management of the KW36A/35A/34A includes
Power Management Controller (PMC) and a DC-DC converter which can operate in a
buck or bypass configuration. The PMC is designed such that the RF radio remains in
state-retention while the core is in various stop modes. It makes sure that the device can
stay in low current consumption mode while the RF radio can wake-up quick enough
for communication.
5.1.1 DC-DC Converter
The features of the DC-DC converter include the following:
System and Power Management
28 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Single inductor, multiple outputs.
Buck mode (pin selectable; CFG=VDCDC_IN).
Continuous or pulsed operation (hardware/software configurable).
Power switch input to allow external control of power up, and to select DC-DC
bypass mode in which all the SoC power supplies (see Table 3) are externally
provided.
Output signal to indicate power stable. Purpose is for the rest of the chip to be
used as a POR.
Scaled battery output voltage suitable for SAR ADC utilization.
Internal oscillator for support when the reference oscillator is not present.
5.2 Modes of Operation
The Arm Cortex-M0+ core in the KW36A/35A/34A has three primary modes of
operation: Run, Wait, and Stop modes. For each run mode, there is a corresponding
wait and stop mode. Wait modes are similar to Arm sleep modes. Stop modes are
similar to Arm deep sleep modes. The very low-power run (VLPR) operation mode
can drastically reduce runtime power when the maximum bus frequency is not
required to handle the application needs.
The WFI instruction invokes both wait and stop modes. The primary modes are
augmented in a number of ways to provide lower power based on application needs.
5.2.1 Power modes
The power management controller (PMC) provides multiple power options to allow
the user to optimize power consumption for the level of functionality needed.
Depending on the stop requirements of the user application, various stop modes are
available that provide state retention, partial power down, or full power down of
certain logic and/or memory. I/O states are held in all modes of operation. The
following table compares the various power modes available.
For each run mode, there is a corresponding wait and stop mode. Wait modes are
similar to Arm sleep modes. Stop modes (VLPS, STOP) are similar to Arm sleep deep
mode. The very-low-power run (VLPR) operating mode can drastically reduce
runtime power when the maximum bus frequency is not required to handle the
application needs.
System and Power Management
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 29
NXP Semiconductors
The three primary modes of operation are run, wait, and stop. The WFI instruction
invokes either wait or stop depending on the SLEEPDEEP bit in Cortex-M0+ System
Control Register. The primary modes are augmented in a number of ways to provide
lower power based on application needs.
Table 8. Power modes (At 25 deg C)
Power mode Description CPU
recovery
method
Radio
Normal Run (all
peripherals clock off)
Allows maximum performance of chip. Radio can be active
Normal Wait - via WFI Allows peripherals to function, while allowing CPU to
go to sleep reducing power.
Interrupt
Normal Stop - via
WFI
Places chip in static state. Lowest power mode that
retains all registers while maintaining LVD protection.
Interrupt
PStop2 (Partial Stop
2)
Core and system clocks are gated. Bus clock
remains active. Masters and slaves clocked by bus
clock remain in Run or VLPRun mode. The clock
generators in MCG and the on-chip regulator in the
PMC also remain in Run or VLPRun mode.
Interrupt
PStop1 (Partial Stop
1)
Core, system clocks, and bus clock are gated. All
bus masters and slaves enter Stop mode. The clock
generators in MCG and the on-chip regulator in the
PMC also remain in Run or VLPRun mode.
Interrupt
VLPR (Very Low-
power Run) (all
peripherals off)
Reduced frequency (1 MHz) Flash access mode,
regulator in low-power mode, LVD off. Internal
oscillator can provide low-power 4 MHz source for
core. (Values @2 MHz core/ 1 MHz bus and flash,
module off, execution from flash).
Biasing is disabled when DC-DC is configured for
continuous mode in VLPR/W
Radio operation is possible
only when DC-DC is
configured for continuous
mode.1 However, there may
be insufficient MIPS with a 4
MHz MCU to support much in
the way of radio operation.
VLPW (Very Low-
power Wait) - via WFI
(all peripherals off)
Similar to VLPR, with CPU in sleep to further reduce
power. (Values @4 MHz core/ 1 MHz bus, module
off)
Biasing is disabled when DC-DC is configured for
continuous mode in VLPR/W
Interrupt
VLPS (Very Low-
power Stop) via WFI
Places MCU in static state with LVD operation off.
Lowest power mode with ADC and all pin interrupts
functional. LPTMR, RTC, CMP can be operational.
Biasing is disabled when DC-DC is configured for
continuous mode in VLPS.
Interrupt
LLS3 (Low Leakage
Stop)
State retention power mode. LLWU, LPTMR, RTC,
CMP can be operational. All of the radio Sea of
Gates(SOG) logic is in state retention.
Wake-up
Interrupt
Radio SOG is in state
retention in LLSx. The
Bluetooth LE/Generic FSK
DSM2 logic can be active
using the 32 kHz clock
LLS2 (Low Leakage
Stop)
State retention power mode. LLWU, LPTMR, RTC,
CMP can be operational. 16 KB or 32 KB of
programmable RAM can be powered on. All of the
radio SOG logic is in state retention.
Wake-up
Interrupt
Table continues on the next page...
System and Power Management
30 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 8. Power modes (At 25 deg C) (continued)
Power mode Description CPU
recovery
method
Radio
VLLS3 (Very Low
Leakage Stop3)
Full SRAM retention. LLWU, LPTMR, RTC, CMP can
be operational. All of the radio SOG logic is in state
retention.
Wake-up
Reset
Radio SOG is in state
retention in VLLS3/2. The
Bluetooth LE/Generic FSK
DSM logic can be active
using the 32 kHz clock.
VLLS2 (Very Low
Leakage Stop2)
Partial SRAM retention. 16 KB or 32 KB of
programmable RAM can be powered on. LLWU,
LPTMR, RTC, CMP can be operational. All of the
radio SOG logic is in state retention.
Wake-up
Reset
VLLS1 (Very Low
Leakage Stop1) with
RTC + 32 kHz OSC
All SRAM powered off. The 32-byte system register
file remains powered for customer-critical data.
LLWU, LPTMR, RTC, CMP can be operational.
Radio logic is power gated.
Wake-up
Reset
Radio operation not
supported. The Radio SOG is
power-gated in VLLS1. Radio
state is lost at VLLS1 and
lower power states.
VLLS1 (Very Low
Leakage Stop1) with
LPTMR + LPO
All SRAM powered off. The 32-byte system register
file remains powered for customer-critical data.
LLWU, LPTMR, RTC, CMP can be operational.
Wake-up
Reset
VLLS0 (Very Low
Leakage Stop0) with
Brown-out Detection
VLLS0 is not supported with DC-DC.
The 32-byte system register file remains powered for
customer-critical data. Disable all analog modules in
PMC and retains I/O state and DGO state. LPO
disabled, POR brown-out detection enabled, Pin
interrupt only. Radio logic is power gated.
Wake-up
Reset
Radio operation not
supported. The Radio digital
is power-gated in VLLS0.
VLLS0 (Very Low
Leakage Stop0)
without Brown-out
Detection
VLLS0 is not supported with DC-DC buck
configuration but is supported with bypass
configuration.
The 32-byte system register file remains powered for
customer-critical data. Disable all analog modules in
PMC and retains I/O state and DGO state. LPO
disabled, POR brown-out detection disabled, Pin
interrupt only. Radio logic is power gated.
Wake-up
Reset
1. Biasing is disabled, but the Flash is in a low-power mode for VLPx, so this configuration can realize some power
savings over use of Run/Wait/Stop.
2. DSM refers to Radio's deep sleep mode. DSM does not refer to the Arm sleep deep mode.
6 KW36A/35A/34A Electrical Characteristics
6.1 AC electrical characteristics
Unless otherwise specified, propagation delays are measured from the 50% to the 50%
point, and rise and fall times are measured at the 20% and 80% points, as shown in the
following figure.
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 31
NXP Semiconductors
80%
20%
50%
VIL
Input Signal
VIH
Fall Time
High
Low
Rise Time
Midpoint1
The midpoint is VIL + (VIH - VIL) / 2
Figure 6. Input signal measurement reference
All digital I/O switching characteristics, unless otherwise specified, assume that the
output pins have the following characteristics.
CL=30 pF loads
Slew rate disabled
Normal drive strength
6.2 Nonswitching electrical specifications
6.2.1 Voltage and current operating requirements
Table 9. Voltage and current operating requirements
Symbol Description Min. Max. Unit Notes
VDD Supply voltage 1.71 3.6 V
VDD_1P5 DCDC VDD_1P5 output pin 1.425 3.6 V 1
VDDA Analog supply voltage 1.71 3.6 V
VDD – VDDA VDD-to-VDDA differential voltage –0.1 0.1 V
VSS – VSSA VSS-to-VSSA differential voltage –0.1 0.1 V
VIH Input high voltage
2.7 V ≤ VDD ≤ 3.6 V
1.7 V ≤ VDD ≤ 2.7 V
0.7 × VDD
0.75 × VDD
V
V
VIL Input low voltage
2.7 V ≤ VDD ≤ 3.6 V
1.7 V ≤ VDD ≤ 2.7 V
0.35 × VDD
0.3 × VDD
V
V
VHYS Input hysteresis 0.06 × VDD V
IICIO IO pin negative DC injection current — single pin
VIN < VSS–0.3V –3 mA
2
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
32 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 9. Voltage and current operating requirements (continued)
Symbol Description Min. Max. Unit Notes
IICcont Contiguous pin DC injection current —regional limit,
includes sum of negative injection currents of 16
contiguous pins
Negative current injection –25 mA
VODPU Open drain pullup voltage level VDD VDD V3
VRAM VDD voltage required to retain RAM 1.2 V
1. This limit applies in any DCDC mode.
2. All I/O pins are internally clamped to VSS through an ESD protection diode. There is no diode connection to VDD. If VIN
greater than VIO_MIN (= VSS–0.3 V) is observed, then there is no need to provide current limiting resistors at the pads.
If this limit cannot be observed then a current limiting resistor is required. The negative DC injection current limiting
resistor is calculated as R = (VIO_MIN - VIN)/|IICIO|.
3. Open drain outputs must be pulled to VDD.
6.2.2 LVD and POR operating requirements
Table 10. VDD supply LVD and POR operating requirements
Symbol Description Min. Typ. Max. Unit Notes
VPOR Falling VDD POR detect voltage 0.8 1.1 1.5 V
VPOR_VDD_
1P5
VDD_1P5 POR threshold 1.25 1.31 1.37 V
VLVDH Falling low-voltage detect threshold — high
range (LVDV = 01)
2.48 2.56 2.64 V
VLVW1H
VLVW2H
VLVW3H
VLVW4H
Low-voltage warning thresholds — high range
Level 1 falling (LVWV = 00)
Level 2 falling (LVWV = 01)
Level 3 falling (LVWV = 10)
Level 4 falling (LVWV = 11)
2.62
2.72
2.82
2.92
2.70
2.80
2.90
3.00
2.78
2.88
2.98
3.08
V
V
V
V
1
VHYSH Low-voltage inhibit reset/recover hysteresis —
high range
±60 mV
VLVDL Falling low-voltage detect threshold — low
range (LVDV=00)
1.54 1.60 1.66 V
VLVW1L
VLVW2L
VLVW3L
VLVW4L
Low-voltage warning thresholds — low range
Level 1 falling (LVWV = 00)
Level 2 falling (LVWV = 01)
Level 3 falling (LVWV = 10)
Level 4 falling (LVWV = 11)
1.74
1.84
1.94
2.04
1.80
1.90
2.00
2.10
1.86
1.96
2.06
2.16
V
V
V
V
1
VHYSL Low-voltage inhibit reset/recover hysteresis —
low range
±40 mV
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 33
NXP Semiconductors
Table 10. VDD supply LVD and POR operating requirements (continued)
Symbol Description Min. Typ. Max. Unit Notes
VBG Bandgap voltage reference 0.97 1.00 1.03 V
tLPO Internal low-power oscillator period — factory
trimmed
900 1000 1100 μs
1. Rising thresholds are falling threshold + hysteresis voltage
6.2.3 Voltage and current operating behaviors
Table 11. Voltage and current operating behaviors
Symbol Description Min. Max. Unit Notes
VOH Output high voltage — Normal drive pad (except
RESET_b)
2.7 V ≤ VDD ≤ 3.6 V, IOH = –5 mA
1.71 V ≤ VDD ≤ 2.7 V, IOH = –2.5 mA
1.71 V ≤ VDD ≤ 2.7 V, IOH = –1 mA
VDD – 0.5
VDD – 0.5
VDD – 0.35
V
V
V
1, 2
VOH Output high voltage — High drive pad (except
RESET_b)
2.7 V ≤ VDD ≤ 3.6 V, IOH = –20 mA
1.71 V ≤ VDD ≤ 2.7 V, IOH = –10 mA
VDD – 0.5
VDD – 0.5
V
V
1, 2
IOHT Output high current total for all ports 100 mA
VOL Output low voltage — Normal drive pad
2.7 V ≤ VDD ≤ 3.6 V, IOL = 5 mA
1.71 V ≤ VDD ≤ 2.7 V, IOL = 2.5 mA
0.5
0.5
V
V
1
VOL Output low voltage — High drive pad
2.7 V ≤ VDD ≤ 3.6 V, IOL = 20 mA
1.71 V ≤ VDD ≤ 2.7 V, IOL = 10 mA
0.5
0.5
V
V
1
IOLT Output low current total for all ports 100 mA
IIN Input leakage current (per pin) for full temperature
range
500 nA 3
IIN Input leakage current (per pin) at 25 °C 0.025 μA 3
IIN Input leakage current (total all pins) for full
temperature range
5 μA 3
RPU Internal pullup resistors 20 50 4
1. PTB0-1 and PTC0-3, PTC6, PTC7, PTC17, PTC18 I/O have both high drive and normal drive capability selected by the
associated PTx_PCRn[DSE] control bit. All other GPIOs are normal drive only.
2. The reset pin only contains an active pull-up device when configured as the RESET signal or as a GPIO. When
configured as a GPIO output, it acts as a pseudo open drain output.
3. Measured at VDD = 3.6 V.
KW36A/35A/34A Electrical Characteristics
34 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
4. Measured at VDD supply voltage = VDD min and Vinput = VSS.
6.2.4 Power mode transition operating behaviors
All specifications except tPOR and VLLSxRUN recovery times in the following
table assume this clock configuration:
CPU and system clocks = 48 MHz
Bus and flash clock = 24 MHz
FEI clock mode
POR and VLLSxRUN recovery use FEI clock mode at the default CPU and system
frequency of 21 MHz, and a bus and flash clock frequency of 10.5 MHz.
Table 12. Power mode transition operating behaviors
Symbol Description Max. Unit Notes
tPOR After a POR event, amount of time from the point VDD
reaches 1.8 V to execution of the first instruction across the
operating temperature range of the chip.
300 μs 1
VLLS0 RUN
169.0
μs
VLLS1 RUN
168.9
μs
VLLS2 RUN
97.3
μs
VLLS3 RUN
97.3
μs
LLS RUN
6.3
μs
VLPS RUN
6.2
μs
STOP RUN
6.2
μs
1. Normal boot (FTFA_FOPT[LPBOOT]=11). When the DC-DC converter is in bypass mode, TPOR will not meet the 300
µs spec when 1) VDD_1P5 < 1.6 V at 25 °C and 125 °C. 2) 1.5V ≤ VDD_1P5 ≤ 1.8 V. For the bypass mode special
case where VDD_1P5 = VDD_1P8, TPOR did not meet the 300 µs maximum spec when the supply slew rate <=100
V/s.
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 35
NXP Semiconductors
6.2.5 Power consumption operating behaviors
Table 13. Power consumption operating behaviors - Bypass Mode
Symbol Description Typ. Max. Unit Notes
IDDA Analog supply current See note mA 1
IDD_RUNCO_C
M
Run mode current in compute operation - 48 MHz
core / 24 MHz flash / bus disabled, LPTMR running
using LPO clock at 1kHz, CoreMark benchmark code
executing from flash at 3.0 V
6.80
8.41
mA
2, 3
IDD_RUNCO Run mode current in compute operation - 48 MHz
core / 24 MHz flash / bus clock disabled, code of
while(1) loop executing from flash at 3.0 V
4.05
4.98
mA
3, 4
IDD_RUN Run mode current - 48 MHz core / 24 MHz bus and
flash, all peripheral clocks disabled, code of while(1)
loop executing from flash at 3.0 V
5.00
6.01
mA
3, 4
IDD_RUN Run mode current - 48 MHz core / 24 MHz bus and
flash, all peripheral clocks enabled, code of while(1)
loop executing from flash at 3.0 V
at 25 °C
at 70 °C
at 105 °C
6.48
6.77
7.13
6.70
6.96
7.90
mA
mA
mA
3, 4, 5
IDD_WAIT Wait mode current - core disabled / 48 MHz system /
24 MHz bus / flash disabled (flash doze enabled), all
peripheral clocks disabled at 3.0 V
3.07 4.31 mA
4
IDD_WAIT Wait mode current - core disabled / 24 MHz system /
24 MHz bus / flash disabled (flash doze enabled), all
peripheral clocks disabled at 3.0 V
2.29 3.15 mA
4
IDD_PSTOP2 Stop mode current with partial stop 2 clocking option
- core and system disabled / 10.5 MHz bus at 3.0 V 2.32 3.11 mA
4
IDD_VLPRCO_
CM
Very-low-power run mode current in compute
operation - 4 MHz core / 0.8 MHz flash / bus clock
disabled, LPTMR running using LPO clock at 1 kHz
reference clock, CoreMark benchmark code
executing from flash at 3.0 V
766.9 1538 μA
6
IDD_VLPRCO Very-low-power run mode current in compute
operation - 4 MHz core / 0.8 MHz flash / bus clock
disabled, code of while(1) loop executing from flash
at 3.0 V
158.45 377 μA
7
IDD_VLPR Very-low-power run mode current - 4 MHz core / 0.8
MHz bus and flash, all peripheral clocks disabled,
code of while(1) loop executing from flash at 3.0 V
185.26 410 μA
7
IDD_VLPR Very-low-power run mode current - 4 MHz core / 0.8
MHz bus and flash, all peripheral clocks enabled,
code of while(1) loop executing from flash at 3.0 V
240.96 805.3 μA
5, 7
IDD_VLPW Very-low-power wait mode current - core disabled / 4
MHz system / 0.8 MHz bus / flash disabled (flash
doze enabled), all peripheral clocks disabled at 3.0 V
133.95 552.8 μA 7
IDD_STOP Stop mode current at 3.0 V
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
36 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 13. Power consumption operating behaviors - Bypass Mode (continued)
Symbol Description Typ. Max. Unit Notes
at 25 °C
at 70 °C
at 105 °C
204.98
291.89
599.46
308.3
872.5
1662
μA
μA
μA
IDD_VLPS Very-low-power stop mode current at Bypass
mode(3.0 V),
at 25 °C
at 70 °C
at 105 °C
6.4
30.64
157
18
76.6
328
μA
μA
μA
IDD_LLS3 Low-leakage stop mode 3 current at Bypass
mode(3.0 V),
at 25 °C
at 70 °C
at 105 °C
2.57
11.76
50.92
4.31
26.07
105.4
μA
μA
μA
IDD_LLS2 Low-leakage stop mode 2 current at Bypass
mode(3.0 V),
at 25 °C
at 70 °C
at 105 °C
2.35
9.74
42.34
3.30
21.40
80.23
μA
μA
μA
IDD_VLLS3 Very-low-leakage stop mode 3 current at Bypass
mode(3.0 V),
at 25 °C
at 70 °C
at 105 °C
2.13
10.78
46.70
3.3
22.97
83.54
μA
μA
μA
IDD_VLLS2 Very-low-leakage stop mode 2 current at Bypass
mode(3.0 V),
at 25 °C
at 70 °C
at 105 °C
1.84
7.88
34.76
2.40
15.19
57.85
μA
μA
μA
IDD_VLLS1 Very-low-leakage stop mode 1 current at Bypass
mode(3.0 V),
at 25°C
at 70°C
at 105°C
851.45
3.57
17.62
1027.8
6.28
23.06
nA
μA
μA
IDD_VLLS0 Very-low-leakage stop mode 0 current
(SMC_STOPCTRL[PORPO] = 0) at 3.0 V
at 25 °C
at 70 °C
at 105 °C
433.00
3.15
17.2
720.3
6.14
23.2
nA
μA
μA
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 37
NXP Semiconductors
Table 13. Power consumption operating behaviors - Bypass Mode (continued)
Symbol Description Typ. Max. Unit Notes
IDD_VLLS0 Very-low-leakage stop mode 0 current
(SMC_STOPCTRL[PORPO] = 1) at 3.0 V
at 25 °C
at 70 °C
at 105 °C
258.12
2.97
16.9
516.43
5.81
22.4
nA
μA
μA
8
1. The analog supply current is the sum of the active or disabled current for each of the analog modules on the device. See
each module's specification for its supply current.
2. MCG configured for FEI mode. CoreMark benchmark compiled using IAR 7.70 with optimization level high, optimized for
balanced.
3. Radio is off.
4. MCG configured for FEI mode.
5. Incremental current consumption from peripheral activity is not included.
6. MCG configured for BLPI mode. CoreMark benchmark compiled using IAR 7.70 with optimization level high, optimized
for balanced.
7. MCG configured for BLPI mode.
8. No brownout.
Table 14. Power consumption operating behaviors - Buck Mode1
Symbol Description Typ. Max. Unit Notes
IDDA Analog supply current See note mA 2
IDD_RUNCO Run mode current in compute operation - 48 MHz
core / 24 MHz flash / bus clock disabled, code of
while(1) loop executing from flash at 3.0 V
3.51
mA
3, 4
IDD_RUN Run mode current - 48 MHz core / 24 MHz bus and
flash, all peripheral clocks disabled, code of while(1)
loop executing from flash at 3.0 V
4.00
mA
3, 4
IDD_RUN Run mode current - 48 MHz core / 24 MHz bus and
flash, all peripheral clocks enabled, code of while(1)
loop executing from flash at 3.0 V
at 25 °C
at 70 °C
at 105 °C
5.81
5.92
6.36
mA
mA
mA
3, 4, 5
IDD_WAIT Wait mode current - core disabled / 48 MHz system /
24 MHz bus / flash disabled (flash doze enabled), all
peripheral clocks disabled at 3.0 V
2.97 mA
3
IDD_WAIT Wait mode current - core disabled / 24 MHz system /
24 MHz bus / flash disabled (flash doze enabled), all
peripheral clocks disabled at 3.0 V
2.51 mA
3
IDD_PSTOP2 Stop mode current with partial stop 2 clocking option
- core and system disabled / 10.5 MHz bus at 3.0 V 2.33 mA
3
IDD_VLPRCO Very-low-power run mode current in compute
operation - 4 MHz core / 0.8 MHz flash / bus clock
disabled, code of while(1) loop executing from flash
at 3.0 V
101.75 μA
6
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
38 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 14. Power consumption operating behaviors - Buck Mode1 (continued)
Symbol Description Typ. Max. Unit Notes
IDD_VLPR Very-low-power run mode current - 4 MHz core / 0.8
MHz bus and flash, all peripheral clocks disabled,
code of while(1) loop executing from flash at 3.0 V
132.17 μA
6
IDD_VLPR Very-low-power run mode current - 4 MHz core / 0.8
MHz bus and flash, all peripheral clocks enabled,
code of while(1) loop executing from flash at 3.0 V
167.65 μA
5, 6
IDD_VLPW Very-low-power wait mode current - core disabled / 4
MHz system / 0.8 MHz bus / flash disabled (flash
doze enabled), all peripheral clocks disabled at 3.0 V
105.72 μA 6
IDD_STOP Stop mode current at 3.0 V
at 25 °C
at 70 °C
at 105 °C
1.43
1.56
1.99
2.32
4.35
4.68
mA
mA
mA
IDD_VLPS Very-low-power stop mode current at Buck mode(3.0
V),
at 25 °C
at 70 °C
at 105 °C
4.18
44.30
218.64
14.98
110
446
μA
μA
μA
7
IDD_LLS3 Low-leakage stop mode 3 current at Buck mode(3.0
V),
at 25 °C
at 70 °C
at 105 °C
2.64
15.27
81.93
4.89
25.51
104.35
μA
μA
μA
7
IDD_LLS2 Low-leakage stop mode 2 current at Buck mode(3.0
V),
at 25 °C
at 70 °C
at 105 °C
2.46
10.14
63.49
3.80
21.14
80.21
μA
μA
μA
7
IDD_VLLS3 Very-low-leakage stop mode 3 current at Buck
mode(3.0 V),
at 25 °C
at 70 °C
at 105 °C
2.03
12.44
62.23
3.28
23.8
83.9
μA
μA
μA
7
IDD_VLLS2 Very-low-leakage stop mode 2 current at Buck
mode(3.0 V),
at 25 °C
at 70 °C
at 105 °C
1.79
8.87
49.39
2.43
16.7
62.94
μA
μA
μA
7
IDD_VLLS1 Very-low-leakage stop mode 1 current at Buck
mode(3.0 V),
7
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 39
NXP Semiconductors
Table 14. Power consumption operating behaviors - Buck Mode1
Symbol Description Typ. Max. Unit Notes
at 25 °C
at 70 °C
at 105 °C
0.830
4.95
27.51
1.07
10.67
36.14
μA
μA
μA
1. The device was configured in buck mode auto-start to perform the measurements. The DCDC_IN was powered with 3.0
V. VDD_1P8OUT was configured to output 1.8 V and VDD_1P5OUT_PMCIN was configured to output 1.5 V.
2. The analog supply current is the sum of the active or disabled current for each of the analog modules on the device. See
each module's specification for its supply current.
3. MCG configured for FEI mode.
4. Radio is off.
5. Incremental current consumption from peripheral activity is not included.
6. MCG configured for BLPI mode.
7. DCDC configured in pulsed mode.
Table 15. Low power mode peripheral adders — typical value (Bypass Mode)
Symbol Description Temperature (°C) Unit
–40 25 50 70 85
IIREFSTEN4MHz 4 MHz internal reference clock (IRC)
adder. Measured by entering STOP or
VLPS mode with 4 MHz IRC enabled.
46 46 47 47 47 µA
IIREFSTEN32KHz 32 kHz internal reference clock (IRC)
adder. Measured by entering STOP mode
with the 32 kHz IRC enabled.
88 91 90 89 88 µA
IEREFSTEN32KHz External 32 kHz crystal clock adder by
means of the RTC bits. Measured by
entering all modes with the crystal
enabled.
VLLS1
VLLS2
VLLS3
LLS2
LLS3
1.4
1.6
2.7
1.8
2.6
1.3
1.5
1.9
1.4
1.7
1.6
1.9
2.9
1.7
2.8
2.4
4.2
7.7
4.1
7.6
4.1
7.7
15
8
15.2
μA
ICMP CMP peripheral adder measured by
placing the device in VLLS1 mode with
CMP enabled using the 6-bit DAC and a
single external input for compare. Includes
6-bit DAC power consumption.
22 19 20 21 21 µA
IRTC RTC peripheral adder measured by placing
the device in VLLS1 mode with external 32
kHz crystal enabled by means of the
RTC_CR[OSCE] bit and the RTC ALARM
set for 1 minute. Includes ERCLK32K (32
kHz external crystal) power consumption.
1.4 1.3 1.6 2.4 4.3 µA
ILPUART LPUART peripheral adder measured by
placing the device in STOP or VLPS mode
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
40 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 15. Low power mode peripheral adders — typical value (Bypass Mode) (continued)
Symbol Description Temperature (°C) Unit
–40 25 50 70 85
with selected clock source waiting for RX
data at 115200 baud rate. Includes
selected clock source power consumption.
MCGIRCLK (4 MHz internal reference
clock)
53
54
54
54
54
µA
ILPTMR LPTMR peripheral adder measured by
placing the device in VLLS1 mode with
LPTMR enabled using LPO.
30
30
30
85
100
nA
ITPM TPM peripheral adder measured by
placing the device in STOP or VLPS mode
with selected clock source configured for
output compare generating 100 Hz clock
signal. No load is placed on the I/O
generating the clock signal. Includes
selected clock source and I/O switching
currents.
MCGIRCLK (4 MHz internal reference
clock)
58
59
59
59
59
µA
IBG Bandgap adder when BGEN bit is set and
device is placed in VLPx, LLS, or VLLSx
mode.
76 82 85 87 87 µA
IADC ADC peripheral adder combining the
measured values at VDD and VDDA by
placing the device in STOP or VLPS mode.
ADC is configured for low-power mode
using the internal clock and continuous
conversions.
331 327 327 327 328 µA
6.2.6 Diagram: Typical IDD_RUN operating behavior
The following data is measured from previous devices with same MCU core (Arm®
Cortex-M0+) under these conditions:
No GPIOs toggled
Code execution from flash with cache enabled
For the ALLOFF curve, all peripheral clocks are disabled except FTFA
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 41
NXP Semiconductors
NOTE
The results in the following graphs are obtained using the
device in Bypass mode.
Figure 7. Run mode supply current vs. core frequency
KW36A/35A/34A Electrical Characteristics
42 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Figure 8. VLPR mode current vs. core frequency
6.2.7 SoC Power Consumption
Full KW36A/35A/34A system-on-chip (SoC) power consumption is a function of the
many configurations possible for the MCU platform and its peripherals including the
2.4 GHz radio and the DC-DC converter. A few measured SoC configurations are as
follows:
Table 16. SoC Power Consumption with default LDO-HF
MCU State Flash State Radio State DC-DC State Typical
Average IC
current
Unit
STOP Doze Rx Buck (VDCDC_IN=3.6 V) 8.5 mA
STOP Doze Tx (at 0 dBm) Buck (VDCDC_IN=3.6 V) 7.8 mA
STOP Doze Tx (at +3.5
dBm)
Buck (VDCDC_IN=3.6 V) 9.2 mA
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 43
NXP Semiconductors
Table 16. SoC Power Consumption with default LDO-HF (continued)
MCU State Flash State Radio State DC-DC State Typical
Average IC
current
Unit
RUN Enabled Rx Buck (VDCDC_IN=3.6 V) 10.4 mA
RUN Enabled Tx (at 0 dBm) Buck (VDCDC_IN=3.6 V) 9.9 mA
RUN Enabled Tx (at +3.5
dBm)
Buck (VDCDC_IN=3.6 V) 11.7 mA
STOP Doze Rx Disabled/Bypass 17.3 mA
STOP Doze Tx (at 0 dBm) Disabled/Bypass 15.9 mA
STOP Doze Tx (at +3.5
dBm)
Disabled/Bypass 18.3 mA
RUN Enabled Rx Disabled/Bypass 21.5 mA
RUN Enabled Tx (at 0 dBm) Disabled/Bypass 19.9 mA
RUN Enabled Tx (at +3.5
dBm)
Disabled/Bypass 22.4 mA
Table 17. SoC Power Consumption with LDO-HF bumped
MCU State Flash State Radio State DC-DC State Typical
Average IC
current
Unit
STOP Doze Rx (LDO-HF Bumped) Buck (VDCDC_IN=3.6 V) 8.7 mA
STOP Doze Tx (LDO-HF Bumped, +5 dBm) Buck (VDCDC_IN=3.6 V) 10.3 mA
RUN Enabled Rx (LDO-HF Bumped) Buck (VDCDC_IN=3.6 V) 11.3 mA
RUN Enabled Tx (LDO-HF Bumped, +5 dBm) Buck (VDCDC_IN=3.6 V) 13.1 mA
STOP Doze Rx (LDO-HF Bumped) Disabled/Bypass (3.6 V) 18.2 mA
STOP Doze Tx (LDO-HF Bumped, +5 dBm) Disabled/Bypass (3.6 V) 20.8 mA
RUN Enabled Rx (LDO-HF Bumped) Disabled/Bypass (3.6 V) 22.6 mA
RUN Enabled Tx (LDO-HF Bumped, +5 dBm) Disabled/Bypass (3.6 V) 26.6 mA
6.2.8 Designing with radiated emissions in mind
To find application notes that provide guidance on designing your system to minimize
interference from radiated emissions:
1. Go to www.nxp.com
2. Perform a keyword search for “EMC design.”
KW36A/35A/34A Electrical Characteristics
44 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
6.2.9 Capacitance attributes
Table 18. Capacitance attributes
Symbol Description Min. Max. Unit
CIN Input capacitance 7 pF
6.3 Switching electrical specifications
6.3.1 Device clock specifications
Table 19. Device clock specifications
Symbol Description Min. Max. Unit
Normal run mode
fSYS System and core clock 48 MHz
fBUS Bus clock 24 MHz
fFLASH Flash clock 24 MHz
fLPTMR LPTMR clock 24 MHz
VLPR and VLPS modes1
fSYS System and core clock 4 MHz
fBUS Bus clock 1 MHz
fFLASH Flash clock 1 MHz
fLPTMR LPTMR clock2 24 MHz
fERCLK External reference clock 16 MHz
fLPTMR_ERCLK LPTMR external reference clock 16 MHz
fTPM TPM asynchronous clock 8 MHz
fLPUART0 LPUART0 asynchronous clock 12 MHz
1. The frequency limitations in VLPR and VLPS modes here override any frequency specification listed in the timing
specification for any other module. These same frequency limits apply to VLPS, whether VLPS entered from RUN or
from VLPR.
2. The LPTMR can be clocked at this speed in VLPR or VLPS only when the source is an external pin.
6.3.2 General switching specifications
These general-purpose specifications apply to all signals configured for GPIO,
LPUART, CAN (for KW36A only), CMT and I2C signals.
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 45
NXP Semiconductors
Table 20. General switching specifications
Description Min. Max. Unit Notes
GPIO pin interrupt pulse width (digital glitch filter disabled)
— Synchronous path
1.5 Bus clock cycles 1, 2
NMI_b pin interrupt pulse width (analog filter enabled) —
Asynchronous path
200 ns 3
GPIO pin interrupt pulse width (digital glitch filter disabled,
analog filter disabled) — Asynchronous path
20 ns 3
External RESET_b input pulse width (digital glitch filter
disabled)
100 ns
Port rise and fall time(high drive strength)
Slew enabled
1.71 ≤ VDD ≤ 2.7 V
2.7 ≤ VDD ≤ 3.6 V
Slew disabled
1.71 ≤ VDD ≤ 2.7 V
2.7 ≤ VDD ≤ 3.6 V
25
16
8
6
ns
ns
ns
ns
4, 5
Port rise and fall time(low drive strength)
Slew enabled
1.71 ≤ VDD ≤ 2.7 V
2.7 ≤ VDD ≤ 3.6 V
Slew disabled
1.71 ≤ VDD ≤ 2.7 V
2.7 ≤ VDD ≤ 3.6 V
24
16
10
6
ns
ns
ns
ns
6, 7
1. This is the minimum pulse width that is guaranteed to pass through the pin synchronization circuitry in run modes.
2. The greater of synchronous and asynchronous timing must be met.
3. This is the minimum pulse width that is guaranteed to be recognized.
4. PTB0, PTB1, PTC0, PTC1, PTC2, PTC3, PTC6, PTC7, PTC17, PTC18.
5. 75 pF load.
6. Ports A, B, and C.
7. 25 pF load.
6.4 Thermal specifications
6.4.1 Thermal operating requirements
Table 21. Thermal operating requirements
Symbol Description Min. Max. Unit Notes
TJDie junction temperature –40 125 °C
TAAmbient temperature –40 105 °C 1
1. Maximum TA can be exceeded only if the user ensures that TJ does not exceed the maximum. The simplest method to
determine TJ is: TJ = TA + RθJA × chip power dissipation.
KW36A/35A/34A Electrical Characteristics
46 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
6.4.2 Thermal attributes
Table 22. Thermal attributes
Board type Symbol Description 48-pin
LQFN
40-pin
"Wettable"
HVQFN
48-pin
"Wettable"
HVQFN
Unit Notes
Four-layer (2s2p) RθJA Thermal resistance, junction
to ambient (natural
convection)
48.3 19.2 21.6 °C/W 1, 2
ΨJT Thermal characterization
parameter, junction to
package top (natural
convection)
0.5 0.1 0.2 °C/W 1, 3
1. Junction temperature is a function of die size, on-chip power dissipation, package thermal resistance, mounting site
(board) temperature, ambient temperature, air flow, power dissipation of other components on the board, and board
construction.
2. Determined according to JEDEC Standard JESD51-2A.
3. Thermal characterization parameter indicating the temperature difference between the package top and the junction
temperature per JEDEC JESD51-2A.
The thermal characterization parameter (ΨJT) is used to determine the junction
temperature with a measurement of the temperature at the top of the package case
using the following equation:
TJ = TT + ΨJT x chip power dissipation
where TT is the thermocouple temperature at the top of the package.
6.5 Peripheral operating requirements and behaviors
6.5.1 Core modules
6.5.1.1 SWD electricals
Table 23. SWD full voltage range electricals
Symbol Description Min. Max. Unit
Operating voltage 1.71 3.6 V
J1 SWD_CLK frequency of operation
Serial wire debug
0
25
MHz
J2 SWD_CLK cycle period 1/J1 ns
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 47
NXP Semiconductors
Table 23. SWD full voltage range electricals (continued)
Symbol Description Min. Max. Unit
J3 SWD_CLK clock pulse width
Serial wire debug
20
ns
J4 SWD_CLK rise and fall times 3 ns
J9 SWD_DIO input data setup time to SWD_CLK rise 10 ns
J10 SWD_DIO input data hold time after SWD_CLK rise 0 ns
J11 SWD_CLK high to SWD_DIO data valid 32 ns
J12 SWD_CLK high to SWD_DIO high-Z 5 ns
J2
J3 J3
J4 J4
SWD_CLK (input)
Figure 9. Serial wire clock input timing
J11
J12
J11
J9 J10
Input data valid
Output data valid
Output data valid
SWD_CLK
SWD_DIO
SWD_DIO
SWD_DIO
SWD_DIO
Figure 10. Serial wire data timing
KW36A/35A/34A Electrical Characteristics
48 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
6.5.2 System modules
There are no specifications necessary for the device's system modules.
6.5.3 Clock modules
6.5.3.1 MCG specifications
Table 24. MCG specifications
Symbol Description Min. Typ. Max. Unit Notes
fints_ft Internal reference frequency (slow clock) —
factory trimmed at nominal VDD and 25 °C
32.768 kHz
fints_t Internal reference frequency (slow clock) —
user trimmed
31.25 39.0625 kHz
Δfdco_res_t Resolution of trimmed average DCO output
frequency at fixed voltage and temperature —
using C3[SCTRIM] and C4[SCFTRIM]
± 0.3 ± 0.6 %fdco 1
Δfdco_t Total deviation of trimmed average DCO output
frequency over voltage and temperature
+0.5/–0.7 ± 3 %fdco 1, 2
Δfdco_t Total deviation of trimmed average DCO output
frequency over fixed voltage and temperature
range of 0–70 °C
± 0.4 ± 1.5 %fdco 1, 2
fintf_ft Internal reference frequency (fast clock) —
factory trimmed at nominal VDD and 25 °C
4 MHz
Δfintf_ft Frequency deviation of internal reference clock
(fast clock) over temperature and voltage —
factory trimmed at nominal VDD and 25 °C
+1/–2 ± 3 %fintf_ft 2
fintf_t Internal reference frequency (fast clock) —
user trimmed at nominal VDD and 25 °C
3 5 MHz
floc_low Loss of external clock minimum frequency —
RANGE = 00
(3/5) x
fints_t
kHz
floc_high Loss of external clock minimum frequency —
RANGE = 01, 10, or 11
(16/5) x
fints_t
kHz
FLL
ffll_ref FLL reference frequency range 31.25 39.0625 kHz
fdco DCO output
frequency range
Low range (DRS = 00)
640 × ffll_ref
20 20.97 25 MHz 3, 4
Mid range (DRS = 01)
1280 × ffll_ref
40 41.94 48 MHz
fdco_t_DMX3
2
DCO output
frequency
Low range (DRS = 00)
732 × ffll_ref
23.99 MHz 5, 6
Mid range (DRS = 01)
1464 × ffll_ref
47.97 MHz
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 49
NXP Semiconductors
Table 24. MCG specifications (continued)
Symbol Description Min. Typ. Max. Unit Notes
Jcyc_fll FLL period jitter
fVCO = 48 MHz
180 ps 7
tfll_acquire FLL target frequency acquisition time 1 ms 8
1. This parameter is measured with the internal reference (slow clock) being used as a reference to the FLL (FEI clock
mode).
2. The deviation is relative to the factory trimmed frequency at nominal VDD and 25 °C, fints_ft.
3. These typical values listed are with the slow internal reference clock (FEI) using factory trim and DMX32 = 0.
4. The resulting system clock frequencies must not exceed their maximum specified values. The DCO frequency deviation
(Δfdco_t) over voltage and temperature must be considered.
5. These typical values listed are with the slow internal reference clock (FEI) using factory trim and DMX32 = 1.
6. The resulting clock frequency must not exceed the maximum specified clock frequency of the device.
7. This specification is based on standard deviation (RMS) of period or frequency.
8. This specification applies to any time the following changes: FLL reference source or reference divider, trim value,
DMX32 bit, DRS bits, or FLL disabled (BLPE, BLPI) to FLL enabled (FEI, FEE, FBE, FBI). If a crystal/resonator is used
as the reference, this specification assumes it is already running.
6.5.3.2 Reference Oscillator Specification
The KW36A/35A/34A has been designed to meet targeted standard specifications for
frequency error over the life of the part, which includes the temperature, mechanical
and aging effects.
The table below lists the recommended crystal specifications. Note that these are
recommendations only and deviation may be allowed. However, deviations may result
in degraded RF performance or possibly a failure to meet RF protocol certification
standards. Designers must ensure that the crystal(s) they use meet the requirements of
their application.
Table 25. Recommended Crystal and Oscillator Specification
Symbol Description F0 = 32.0 MHz F0 = 26.0 MHz Unit Notes
Min Typ Max Min Typ Max
TAOperating
Temperature
–40 105 –40 105 °C 1
Crystal initial
frequency
tolerance
–10 10 –10 10 ppm 2,3
Crystal frequency
stability and aging
–25 25 –25 24 ppm 2,4
Oscillator variation –12 15 –12 16 ppm 5
Total reference
oscillator tolerance
–50 50 –50 50 ppm 6
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
50 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 25. Recommended Crystal and Oscillator Specification (continued)
Symbol Description F0 = 32.0 MHz F0 = 26.0 MHz Unit Notes
Min Typ Max Min Typ Max
for Bluetooth LE
applications
CLLoad capacitance 7 10 13 7 10 13 pF 2, 7
C0Shunt capacitance 0.469 0.67 0.871 0.42 0.6 0.78 pF 2,7
Cm1 Motional
capacitance
1.435 2.05 2.665 1.435 2.05 2.665 fF 2,7
Lm1 Motional
inductance
8.47 12.1 15.73 12.81 18.3 23.79 mH 2,7
Rm1 Motional
resistance
25 50 35 50 Ohms 2
ESR Equivalent series
resistance
60 60 Ohms 2,8
PdMaximum crystal
drive
10 200 10 200 uW 2
TSTrim sensitivity 6.30 9.00 11.70 6.39 9.12 11.86 ppm/pF 2,7
TOSC Oscillator Startup
Time
500 500 μs 9
1. Full temperature range of this device. A reduced range can be chosen to meet application needs.
2. Recommended crystal specification.
3. Measured at 25 °C.
4. Combination of frequency stability variation over desired temperature range and frequency variation due to aging over
desired lifetime of system.
5. Variation due to temperature, process, and aging of MCU.
6. Sum of crystal initial frequency tolerance, crystal frequency stability and aging, oscillator variation, and PCB
manufacturing variation must not exceed this value.
7. Typical is target. 30% tolerances shown.
8. ESR = Rm1 * (1 + [C0/CL])^2.
9. Time from oscillator enable to clock ready. Dependent on the complete hardware configuration of the oscillator.
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 51
NXP Semiconductors
Figure 11. Crystal Electrical Model
6.5.3.3 32 kHz Oscillator Frequency Specifications
Table 26. 32 kHz Crystal and Oscillator Specifications
Symbol Description Min. Typ. Max. Unit Notes
fosc_lo Crystal
frequency
32.768 kHz
TAOperating
temperature
–40 105 °C 1
Total crystal
frequency
tolerance
–500 500 ppm 2,3
CLLoad
capacitance
12.5 pF 2
ESR Equivalent
series
resistance
80 kOhms 2
tstart Crystal start-up
time
1000 ms 4
fec_extal32 External input
clock frequency
32.768 kHz 5
vec_extal32 External input
clock amplitude
0.7 VDD V6
1. Full temperature range of this device. A reduced range can be chosen to meet application needs.
2. Recommended crystal specification.
KW36A/35A/34A Electrical Characteristics
52 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
3. Sum of crystal initial frequency tolerance, crystal frequency stability, and aging tolerances given by crystal vendor.
4. Time from oscillator enable to clock stable. Dependent on the complete hardware configuration of the oscillator.
5. External oscillator connected to EXTAL32K. XTAL32K must be unconnected.
6. The parameter specified is a peak-to-peak value and VIH and VIL specifications do not apply. The voltage of the
applied clock must be within the range of VSS to VDD.
6.5.4 Memories and memory interfaces
6.5.4.1 Flash (FTFE) electrical specifications
This section describes the electrical characteristics of the FTFE module.
6.5.4.1.1 Flash timing specifications — commands
Table 27. Flash command timing specifications
Symbol Description1Min. Typ. Max. Unit Notes
trd1blk256k
Read 1s Block execution time
256 KB program/data flash
2
ms
trd1sec2k Read 1s Section execution time (2 KB flash) 75 μs
tpgmchk Program Check execution time 95 μs
trdrsrc Read Resource execution time 40 μs
tpgm8 Program Phrase execution time 90 225 μs
tersblk256k
Erase Flash Block execution time
256 KB program/data flash
125
2125
ms
2
tersscr Erase Flash Sector execution time 12 130 ms 2
tpgmsec2k Program Section execution time (2 KB flash) 10 ms
trd1allx
trd1alln
Read 1s All Blocks execution time
FlexNVM devices
Program flash only devices
3.5
3.5
ms
ms
trdonce Read Once execution time 30 μs
tpgmonce Program Once execution time 90 μs
tersall Erase All Blocks execution time 262 4380 ms 2
tvfykey Verify Backdoor Access Key execution time 35 μs
tersallu Erase All Blocks Unsecure execution time 262 4380 ms 2
tswapx01
tswapx02
tswapx04
tswapx08
Swap Control execution time
control code 0x01
control code 0x02
control code 0x04
280
100
100
235
235
35
μs
μs
μs
μs
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
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NXP Semiconductors
Table 27. Flash command timing specifications (continued)
Symbol Description1Min. Typ. Max. Unit Notes
tswapx10 control code 0x08
control code 0x10
100 235 μs
tpgmpart32k
tpgmpart256k
Program Partition for EEPROM execution time
32 KB EEPROM backup
256 KB EEPROM backup
252
262
ms
ms
tsetramff
tsetram32k
tsetram256k
Set FlexRAM Function execution time:
Control Code 0xFF
32 KB EEPROM backup
256 KB EEPROM backup
115
0.8
4.5
1.2
6.1
μs
ms
ms
teewr8b32k
teewr8b256k
Byte-write to FlexRAM execution time:
32 KB EEPROM backup
256 KB EEPROM backup
385
1015
1700
3800
μs
μs
3
teewr16b32k
teewr16b256k
16-bit write to FlexRAM execution time:
32 KB EEPROM backup
256 KB EEPROM backup
385
1015
1700
3800
μs
μs
3
teewr32bers 32-bit write to erased FlexRAM location
execution time
360 2000 μs 3
teewr32b32k
teewr32b256k
32-bit write to FlexRAM execution time:
32 KB EEPROM backup
256 KB EEPROM backup
630
1890
2000
4100
μs
μs
3
1. All command times assume 25 MHz or greater flash clock frequency (for synchronization time between internal/external
clocks).
2. Maximum times for erase parameters based on expectations at cycling end-of-life.
3. First time EERAM writes after a Reset or SETRAM command may incur additional overhead for EEE cleanup, resulting
in up to 2x the times shown.
NOTE
Under certain circumstances maximum times for writes to
FlexRAM may be exceeded. In this case the user or
application may wait, or assert reset to the FTFE module to
stop the operation.
6.5.4.1.2 Reliability specifications
Table 28. NVM reliability specifications
Symbol Description Min. Typ. Max. Unit Notes
Program Flash
Table continues on the next page...
KW36A/35A/34A Electrical Characteristics
54 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 28. NVM reliability specifications (continued)
Symbol Description Min. Typ. Max. Unit Notes
tnvmret1k Data retention after up to 1 K cycles 20 years 1
nnvmcyc Cycling endurance 1 K cycles 2
FlexRAM as Emulated EEPROM
tnvmretee Data retention 5 years 1, 3
nnvmwree16
nnvmwree256
Write endurance
EEPROM backup to FlexRAM used ratio = 16
EEPROM backup to FlexRAM used ratio =
256
100 K
1.6 M
writes
writes
4, 5, 6
1. Data retention period per block begins upon initial user factory programming or after each subsequent erase.
2. Program and Erase are supported across product temperature specification. Cycling endurance is per flash sector.
3. Background maintenance operations during normal FlexRAM usage extend effective data retention life beyond 5
years.
4. FlexMemory write endurance specified for 16-bit and/or 32-bit writes to FlexRAM and is supported across product
temperature specification. Greater write endurance may be achieved with larger ratios of EEPROM backup to
FlexRAM.
5. For usage of any EEE driver other than the FlexMemory feature, the endurance specification falls back to the Data
Flash endurance value of 1 K.
6. FlexMemory calculator tool is available on the NXP web site for help in estimating the maximum write endurance
achievable at specific EEPROM/FlexRAM ratios. The "In Spec" portions of the online calculator refer to the NVM
reliability specifications section of the data sheet. This calculator only applies to the Kinetis FlexMemory feature.
6.5.4.1.3 Write endurance to FlexRAM for EEPROM
When the FlexNVM partition code is not set to full data flash, the EEPROM data set
size can be set to any of several non-zero values.
The bytes not assigned to data flash via the FlexNVM partition code are used by the
FTFE to obtain an effective endurance increase for the EEPROM data. The built-in
EEPROM record management system raises the number of program/erase cycles that
can be attained prior to device wear-out by cycling the EEPROM data through a larger
EEPROM NVM storage space.
While different partitions of the FlexNVM are available, the intention is that a single
choice for the FlexNVM partition code and EEPROM data set size is used throughout
the entire lifetime of a given application.
6.5.5 Security and integrity modules
There are no specifications necessary for the device's security and integrity modules.
KW36A/35A/34A Electrical Characteristics
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NXP Semiconductors
6.5.6 Analog
6.5.6.1 ADC electrical specifications
All other ADC channels meet the 13-bit differential/12-bit single-ended accuracy
specifications. The following specification is defined with the DC-DC converter
operating in Bypass mode.
6.5.6.1.1 16-bit ADC operating conditions
Table 29. 16-bit ADC operating conditions
Symbol Description Conditions Min. Typ.1Max. Unit Notes
VDDA Supply voltage Absolute 1.71 3.6 V
ΔVDDA Supply voltage Delta to VDD (VDD – VDDA) –100 0 +100 mV 2
ΔVSSA Ground voltage Delta to VSS (VSS – VSSA) –100 0 +100 mV 2
VREFH ADC reference
voltage high
1.13 VDDA VDDA V3
VREFL ADC reference
voltage low
VSSA VSSA VSSA V3
VADIN Input voltage 16-bit differential mode
All other modes
VSSA
VSSA
31/32 ×
VREFH
VREFH
V
CADIN Input
capacitance
16-bit mode
8-bit / 10-bit / 12-bit
modes
8
4
10
5
pF
RADIN Input series
resistance
2 5
RAS Analog source
resistance
(external)
13-bit / 12-bit modes
fADCK < 4 MHz
5
4
fADCK ADC conversion
clock frequency
≤ 13-bit mode 1.0 18.0 MHz 5
fADCK ADC conversion
clock frequency
16-bit mode 2.0 12.0 MHz 5
Crate ADC conversion
rate
≤ 13-bit modes
No ADC hardware averaging
Continuous conversions
enabled, subsequent
conversion time
20.000
818.330
kS/s
6
Crate ADC conversion
rate
16-bit mode
No ADC hardware averaging
37.037
461.467
kS/s
6
KW36A/35A/34A Electrical Characteristics
56 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 29. 16-bit ADC operating conditions
Symbol Description Conditions Min. Typ.1Max. Unit Notes
Continuous conversions
enabled, subsequent
conversion time
1. Typical values assume VDDA = 3.0 V, Temp = 25 °C, fADCK = 1.0 MHz, unless otherwise stated. Typical values are for
reference only, and are not tested in production.
2. DC potential difference.
3. For packages without dedicated VREFH and VREFL pins, VREFH is internally tied to VDDA, and VREFL is internally tied
to VSSA.
4. This resistance is external to MCU. To achieve the best results, the analog source resistance must be kept as low as
possible. The results in this data sheet are derived from a system that had < 8 Ω analog source resistance. The
RAS/CAS time constant should be kept to < 1 ns.
5. To use the maximum ADC conversion clock frequency, CFG2[ADHSC] must be set and CFG1[ADLPC] must be clear.
6. For guidelines and examples of conversion rate calculation, download the ADC calculator tool.
RAS
VAS CAS
ZAS
VADIN
ZADIN
RADIN
RADIN
RADIN
RADIN
CADIN
Pad
leakage
INPUT PIN
INPUT PIN
INPUT PIN
SIMPLIFIED
INPUT PIN EQUIVALENT
CIRCUIT
SIMPLIFIED
CHANNEL SELECT
CIRCUIT
ADC SAR
ENGINE
Figure 12. ADC input impedance equivalency diagram
6.5.6.1.2 16-bit ADC electrical characteristics
KW36A/35A/34A Electrical Characteristics
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 57
NXP Semiconductors
Table 30. 16-bit ADC characteristics (VREFH = VDDA, VREFL = VSSA)
Symbol Description Conditions1Min. Typ.2Max. Unit Notes
IDDA_ADC Supply current 0.215 1.7 mA 3
fADACK
ADC asynchronous
clock source
ADLPC=1, ADHSC=0
ADLPC=1, ADHSC=1
ADLPC=0, ADHSC=0
ADLPC=0, ADHSC=1
1.2
2.4
3.0
4.4
2.4
4.0
5.2
6.2
3.9
6.1
7.3
9.5
MHz tADACK =
1/fADACK
Sample Time See Reference Manual chapter for sample times
TUE Total unadjusted
error
12-bit modes
<12-bit modes
±4
±1.4
±6.8
±2.1
LSB45
DNL Differential non-
linearity
12-bit mode; Buck
Mode6
12-bit mode; Bypass
Mode
±0.7
±0.5
–1.1 to +1.9
–1.1 to +1.9
LSB45
INL Integral non-
linearity
12-bit mode; Buck
Mode6
12-bit mode; Bypass
Mode
±1.0
±0.6
–2.7 to +1.9
–2.7 to +1.9
LSB45
EFS Full-scale error 12-bit modes
<12-bit modes
–4
–1.4
–5.4
–1.8
LSB4VADIN =
VDDA5
EQQuantization error 16-bit modes
≤13-bit modes
–1 to 0
±0.5
LSB4
ENOB Effective number of
bits
16-bit differential mode; Buck
Mode6
Avg = 32
Avg = 4
16-bit single-ended mode;
Buck Mode6
Avg = 32
Avg = 4
16-bit differential mode;
Bypass Mode
Avg = 32
Avg = 4
16-bit single-ended mode;
Bypass Mode
Avg = 32
Avg = 4
12
11.25
11
9.5
12.5
11.25
11
10
12.75
11.75
11.5
10.5
13
12
11.75
10.5
bits
7
SINAD Signal-to-noise plus
distortion
See ENOB 6.02 × ENOB + 1.76 dB
THD Total harmonic
distortion
16-bit differential mode; Buck
Mode68
Table continues on the next page...
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Table 30. 16-bit ADC characteristics (VREFH = VDDA, VREFL = VSSA) (continued)
Symbol Description Conditions1Min. Typ.2Max. Unit Notes
Avg = 32
16-bit single-ended mode;
Buck Mode6
Avg = 32
16-bit differential mode;
Bypass Mode
Avg = 32
16-bit single-ended mode;
Bypass Mode
Avg = 32
–90
–88
–89
–87
dB
SINAD Signal-to-noise plus
distortion
See ENOB 6.02 × ENOB + 1.76 dB
SFDR Spurious free
dynamic range
distortion
16-bit differential mode; Buck
Mode6
Avg = 32
16-bit single-ended mode;
Buck Mode6
Avg = 32
16-bit differential mode;
Bypass Mode
Avg = 32
16-bit single-ended mode;
Bypass Mode
Avg = 32
85
85
87
85
89
87
94
88
dB
8
EIL Input leakage error IIn × RAS mV IIn =
leakage
current
(see
Voltage
and
current
operating
ratings)
Temp sensor slope Across the full temperature
range of the device
1.67 1.74 1.81 mV/°
C
9
VTEMP25 Temp sensor
voltage
25 °C 706 716 726 mV 9
1. All accuracy numbers assume that the ADC is calibrated with VREFH = VDDA.
2. Typical values assume VDDA = 3.0 V, Temp = 25 °C, fADCK = 2.0 MHz unless otherwise stated. Typical values are for
reference only and are not tested in production.
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3. The ADC supply current depends on the ADC conversion clock speed, conversion rate and ADC_CFG1[ADLPC] (low-
power). For lowest power operation, ADC_CFG1[ADLPC] must be set, the ADC_CFG2[ADHSC] bit must be clear with 1
MHz ADC conversion clock speed.
4. 1 LSB = (VREFH - VREFL)/2N.
5. ADC conversion clock < 16 MHz, maximum hardware averaging (AVGE = %1, AVGS = %11).
6. VREFH = Output of Voltage Reference(VREF).
7. Input data is 100 Hz sine wave. ADC conversion clock < 12 MHz.
8. Input data is 1 kHz sine wave. ADC conversion clock < 12 MHz.
9. ADC conversion clock < 3 MHz.
6.5.6.2 Voltage reference electrical specifications
Table 31. VREF full-range operating requirements
Symbol Description Min. Max. Unit Notes
VDDA Supply voltage 1.71 3.6 V
TATemperature –40 to 105 °C
CLOutput load capacitance 100 nF 1, 2
1. CL must be connected to VREF_OUT if the VREF_OUT functionality is being used for either an internal or external
reference.
2. The load capacitance should not exceed +/–25% of the nominal specified CL value over the operating temperature range
of the device.
Table 32. VREF full-range operating behaviors
Symbol Description Min. Typ. Max. Unit Notes
Vout Voltage reference output with factory trim at
nominal VDDA and temperature=25 °C
1.190 1.1950 1.2 V 1
Vout Voltage reference output with user trim at
nominal VDDA and temperature=25 °C
1.1945 1.1950 1.1955 V 1
Vstep Voltage reference trim step 0.5 mV 1
Vtdrift Temperature drift (Vmax -Vmin across the full
temperature range)
20 mV 1
Ibg Bandgap only current 80 µA
Ilp Low-power buffer current 360 uA 1
Ihp High-power buffer current 1 mA 1
ΔVLOAD Load regulation
current = ± 1.0 mA
200
µV 1, 2
Tstup Buffer startup time 100 µs
Tchop_osc_st
up
Internal bandgap start-up delay with chop
oscillator enabled
35 ms
Vvdrift Voltage drift (Vmax –Vmin across the full voltage
range)
2 mV 1
1. See the chip's Reference Manual for the appropriate settings of the VREF Status and Control register.
2. Load regulation voltage is the difference between the VREF_OUT voltage with no load vs. voltage with defined load
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Table 33. VREF limited-range operating requirements
Symbol Description Min. Max. Unit Notes
TATemperature 0 70 °C
Table 34. VREF limited-range operating behaviors
Symbol Description Min. Max. Unit Notes
Vtdrift Temperature drift (Vmax –Vmin across the limited
temperature range)
15 mV
6.5.6.3 CMP and 6-bit DAC electrical specifications
Table 35. Comparator and 6-bit DAC electrical specifications
Symbol Description Min. Typ. Max. Unit
VDD Supply voltage 1.71 3.6 V
IDDHS Supply current, High-speed mode (EN=1, PMODE=1) 200 μA
IDDLS Supply current, low-speed mode (EN=1, PMODE=0) 20 μA
VAIN Analog input voltage VSS – 0.3 VDD V
VAIO Analog input offset voltage 20 mV
VHAnalog comparator hysteresis1
CR0[HYSTCTR] = 00
CR0[HYSTCTR] = 01
CR0[HYSTCTR] = 10
CR0[HYSTCTR] = 11
5
10
20
30
mV
mV
mV
mV
VCMPOh Output high VDD – 0.5 V
VCMPOl Output low 0.5 V
tDHS Propagation delay, high-speed mode (EN=1, PMODE=1) 20 50 200 ns
tDLS Propagation delay, low-speed mode (EN=1, PMODE=0) 80 250 600 ns
Analog comparator initialization delay2 40 μs
IDAC6b 6-bit DAC current adder (enabled) 7 μA
INL 6-bit DAC integral non-linearity –0.5 0.5 LSB3
DNL 6-bit DAC differential non-linearity –0.3 0.3 LSB
1. Typical hysteresis is measured with input voltage range limited to 0.6 to VDD–0.6 V.
2. Comparator initialization delay is defined as the time between software writes to change control inputs (Writes to
CMP_DACCR[DACEN], CMP_DACCR[VRSEL], CMP_DACCR[VOSEL], CMP_MUXCR[PSEL], and
CMP_MUXCR[MSEL]) and the comparator output settling to a stable level.
3. 1 LSB = Vreference/64
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00
01
10
HYSTCTR
Setting
0.1
10
11
Vin level (V)
CMP Hystereris (V)
3.12.82.5
2.2
1.91.61.3
1
0.70.4
0.05
0
0.01
0.02
0.03
0.08
0.07
0.06
0.04
Figure 13. Typical hysteresis vs. Vin level (VDD = 3.3 V, PMODE = 0)
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62 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
00
01
10
HYSTCTR
Setting
10
11
0.1 3.12.82.5
2.2
1.91.61.3
1
0.70.4
0.1
0
0.02
0.04
0.06
0.18
0.14
0.12
0.08
0.16
Vin level (V)
CMP Hysteresis (V)
Figure 14. Typical hysteresis vs. Vin level (VDD = 3.3 V, PMODE = 1)
6.5.7 Timers
See General switching specifications.
6.5.8 Communication interfaces
6.5.8.1 CAN switching specifications
See General switching specifications.
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6.5.8.2 DSPI switching specifications (limited voltage range)
The DMA Serial Peripheral Interface (DSPI) provides a synchronous serial bus with
master and slave operations. Many of the transfer attributes are programmable. The
tables below provide DSPI timing characteristics for classic SPI timing modes. See the
DSPI chapter of the Reference Manual for information on the modified transfer formats
used for communicating with slower peripheral devices.
Table 36. Master mode DSPI timing (limited voltage range)
Num Description Min. Max. Unit Notes
Operating voltage 2.7 3.6 V
Frequency of operation 12 MHz
DS1 DSPI_SCK output cycle time 2 x tBUS ns
DS2 DSPI_SCK output high/low time (tSCK/2) − 2 (tSCK/2) + 2 ns
DS3 DSPI_PCSn valid to DSPI_SCK delay (tBUS x 2) −
2
ns 1
DS4 DSPI_SCK to DSPI_PCSn invalid delay (tBUS x 2) −
2
ns 2
DS5 DSPI_SCK to DSPI_SOUT valid 8.5 ns
DS6 DSPI_SCK to DSPI_SOUT invalid –2 ns
DS7 DSPI_SIN to DSPI_SCK input setup 16.2 ns
DS8 DSPI_SCK to DSPI_SIN input hold 0 ns
1. The delay is programmable in SPIx_CTARn[PCSSCK] and SPIx_CTARn[CSSCK].
2. The delay is programmable in SPIx_CTARn[PASC] and SPIx_CTARn[ASC].
DS3 DS4
DS1
DS2
DS7 DS8
First data Last data
DS5
First data Data Last data
DS6
Data
SPI_PCSn
SPI_SCK
(CPOL=0)
SPI_SIN
SPI_SOUT
Figure 15. DSPI classic SPI timing — master mode
Table 37. Slave mode DSPI timing (limited voltage range)
Num Description Min. Max. Unit
Operating voltage 2.7 3.6 V
Frequency of operation 6 MHz
Table continues on the next page...
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Table 37. Slave mode DSPI timing (limited voltage range) (continued)
Num Description Min. Max. Unit
DS9 DSPI_SCK input cycle time 4 x tBUS ns
DS10 DSPI_SCK input high/low time (tSCK/2) − 2 (tSCK/2) + 2 ns
DS11 DSPI_SCK to DSPI_SOUT valid 21.4 ns
DS12 DSPI_SCK to DSPI_SOUT invalid 0 ns
DS13 DSPI_SIN to DSPI_SCK input setup 2.6 ns
DS14 DSPI_SCK to DSPI_SIN input hold 7.0 ns
DS15 DSPI_SS active to DSPI_SOUT driven 14 ns
DS16 DSPI_SS inactive to DSPI_SOUT not driven 14 ns
First data Last data
First data Data Last data
Data
DS15
DS10 DS9
DS16
DS11
DS12
DS14
DS13
SPI_SS
SPI_SCK
(POL=0)
SPI_SOUT
SPI_SIN
Figure 16. DSPI classic SPI timing — slave mode
6.5.8.3 DSPI switching specifications (full voltage range)
The DMA Serial Peripheral Interface (DSPI) provides a synchronous serial bus with
master and slave operations. Many of the transfer attributes are programmable. The
tables below provide DSPI timing characteristics for classic SPI timing modes. See
the DSPI chapter of the Reference Manual for information on the modified transfer
formats used for communicating with slower peripheral devices.
Table 38. Master mode DSPI timing (full voltage range)
Num Description Min. Max. Unit Notes
Operating voltage 1.71 3.6 V 1
Frequency of operation 12 MHz
DS1 DSPI_SCK output cycle time 2 x tBUS ns
DS2 DSPI_SCK output high/low time (tSCK/2) – 4 (tSCK/2) + 4 ns
Table continues on the next page...
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NXP Semiconductors
Table 38. Master mode DSPI timing (full voltage range) (continued)
Num Description Min. Max. Unit Notes
DS3 DSPI_PCSn valid to DSPI_SCK delay (tBUS x 2) −
4
ns 2
DS4 DSPI_SCK to DSPI_PCSn invalid delay (tBUS x 2) −
4
ns 3
DS5 DSPI_SCK to DSPI_SOUT valid 10 ns
DS6 DSPI_SCK to DSPI_SOUT invalid –1.2 ns
DS7 DSPI_SIN to DSPI_SCK input setup 23.3 ns
DS8 DSPI_SCK to DSPI_SIN input hold 0 ns
1. The DSPI module can operate across the entire operating voltage for the processor, but to run across the full voltage
range the maximum frequency of operation is reduced.
2. The delay is programmable in SPIx_CTARn[PCSSCK] and SPIx_CTARn[CSSCK].
3. The delay is programmable in SPIx_CTARn[PASC] and SPIx_CTARn[ASC].
DS3 DS4
DS1
DS2
DS7 DS8
First data Last data
DS5
First data Data Last data
DS6
Data
SPI_PCSn
SPI_SCK
(CPOL=0)
SPI_SIN
SPI_SOUT
Figure 17. DSPI classic SPI timing — master mode
Table 39. Slave mode DSPI timing (full voltage range)
Num Description Min. Max. Unit
Operating voltage 1.71 3.6 V
Frequency of operation 6 MHz
DS9 DSPI_SCK input cycle time 4 x tBUS ns
DS10 DSPI_SCK input high/low time (tSCK/2) – 4 (tSCK/2) + 4 ns
DS11 DSPI_SCK to DSPI_SOUT valid 29.1 ns
DS12 DSPI_SCK to DSPI_SOUT invalid 0 ns
DS13 DSPI_SIN to DSPI_SCK input setup 3.2 ns
DS14 DSPI_SCK to DSPI_SIN input hold 7.0 ns
DS15 DSPI_SS active to DSPI_SOUT driven 25 ns
DS16 DSPI_SS inactive to DSPI_SOUT not driven 25 ns
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NXP Semiconductors
First data Last data
First data Data Last data
Data
DS15
DS10 DS9
DS16
DS11
DS12
DS14
DS13
SPI_SS
SPI_SCK
(POL=0)
SPI_SOUT
SPI_SIN
Figure 18. DSPI classic SPI timing — slave mode
6.5.8.4 Inter-Integrated Circuit Interface (I2C) timing
Table 40. I 2C timing
Characteristic Symbol Standard Mode Fast Mode Unit
Minimum Maximum Minimum Maximum
SCL Clock Frequency fSCL 0 100 0 400 kHz
Hold time (repeated) START condition.
After this period, the first clock pulse is
generated.
tHD; STA 4 0.6 µs
LOW period of the SCL clock tLOW 4.7 1.3 µs
HIGH period of the SCL clock tHIGH 4 0.6 µs
Set-up time for a repeated START
condition
tSU; STA 4.7 0.6 µs
Data hold time for I2C bus devices tHD; DAT 013.452030.91µs
Data set-up time tSU; DAT 2504 1002, 5 ns
Rise time of SDA and SCL signals tr 1000 20 +0.1Cb5,
6300 ns
Fall time of SDA and SCL signals tf 300 20 +0.1Cb5,
6300 ns
Set-up time for STOP condition tSU; STO 4 0.6 µs
Bus free time between STOP and
START condition
tBUF 4.7 1.3 µs
Pulse width of spikes that must be
suppressed by the input filter
tSP N/A N/A 0 50 ns
1. The master mode I2C deasserts ACK of an address byte simultaneously with the falling edge of SCL. If no slaves
acknowledge this address byte, then a negative hold time can result, depending on the edge rates of the SDA and
SCL lines.
2. The maximum tHD; DAT must be met only if the device does not stretch the LOW period (tLOW) of the SCL signal.
3. Input signal Slew = 10 ns and Output Load = 50 pF.
4. Set-up time in slave-transmitter mode is 1 IP Bus clock period, if the TX FIFO is empty.
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NXP Semiconductors
5. A Fast mode I2C bus device can be used in a Standard mode I2C bus system, but the requirement tSU; DAT ≥ 250 ns
must then be met. This is automatically the case if the device does not stretch the LOW period of the SCL signal. If such
a device does stretch the LOW period of the SCL signal, then it must output the next data bit to the SDA line trmax + tSU;
DAT = 1000 + 250 = 1250 ns (according to the Standard mode I2C bus specification) before the SCL line is released.
6. Cb = total capacitance of the one bus line in pF.
Figure 19. Timing definition for fast and standard mode devices on the I2C bus
6.5.8.5 LPUART
See General switching specifications.
6.5.9 Human-machine interfaces (HMI)
6.5.9.1 GPIO
The maximum input voltage on PTC0/1/2/3 is VDD+0.3V. For rest of the GPIO
specification, see General switching specifications.
6.6 DC-DC Converter Operating Requirements
Table 41. DC-DC Converter operating conditions
Characteristic Symbol Min Typ Max Unit
Bypass Mode Supply Voltage (RF and Analog) VDDRF1,
VDDRF2,
VDDRF3, VDD_1P5
1.425 3.6 Vdc
Bypass Mode Supply Voltage (Digital) VDDX, VDCDC_IN,
VDDA
1.71 3.6 Vdc
Buck Mode Supply Voltage 1, 2VDCDC_IN 2.1 3.6 Vdc
DC-DC Inductor
Value 10 μH
Table continues on the next page...
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68 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 41. DC-DC Converter operating conditions (continued)
Characteristic Symbol Min Typ Max Unit
ESR <0.2 <0.5 Ohms
DC-DC internal oscillator DCDCInt_Osc 26 MHz
1. In Buck mode, DC-DC converter needs 2.1 V minimum to start, the supply can drop to 1.8 V after DC-DC converter
settles.
2. In Buck mode, DC-DC converter generates 1.8 V at VDD_1P8OUT and 1.5 V at VDD_1P5OUT_PMCIN pins.
VDD_1P8OUT should supply to VDD1, VDD2 and VDDA. VDD_1P5OUT_PMCIN should supply to VDD_RF1 and
VDD_RF2. VDD_RF3 can be either supplied by 1.5 V or 1.8 V.
Table 42. DC-DC Converter Specifications
Characteristics Conditions Symbol Min Typ Max Unit
DC-DC Converter Output
Power (total power output of
1p8V and 1p5V)
VDCDC_IN above 2.7 V Pdcdc_out1 1951mW
VDCDC_IN below 2.7 V Pdcdc_out2 1401mW
Switching Frequency2DCDC_FREQ DC-DC
reference
frequency
divided by 16
3
MHz
Half FET Threshold I_half_FET 5 mA
Double FET Threshold I_double_FET 40 mA
Buck Mode
DC-DC Conversion Efficiency DCDC_EFF_buck 90%
1.8 V Output Voltage
VDD_1P8_buck 1.71 min(VDCD
C_IN_buc
k, 3.5)4, 5
Vdc
1.8 V Output Current6, 7
VDD_1P8 = 3.0 V
1.5 V <= VDC_1P5
<= 1.7 V
VDCDC_IN=3.1 V
IDD_1P8_buck1 39 mA
VDD_1P8 = 2.65 V
1.5 V <= VDC_1P5
<= 1.7 V
VDCDC_IN=2.7 V
IDD_1P8_buck2 45 mA
VDD_1P8 = 1.8 V
1.5 V <= VDC_1P5
<= 1.7 V
VDCDC_IN=2.1 V
IDD_1P8_buck3 35 mA
1.5 V Output Voltage Consumed by Radio
for Pout<=+3.5 dBm
VDD_1P5_buck 1.45 1.581.8 Vdc
1.5 V Output Voltage Consumed by Radio
for Pout=+5 dBm
VDD_1P5_buck 1.55 1.62591.8 Vdc
Table continues on the next page...
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Table 42. DC-DC Converter Specifications (continued)
Characteristics Conditions Symbol Min Typ Max Unit
1.5 V Output Current6, 10 IDD_1P5_buck 45 mA
DC-DC Transition Operating
Behavior
LSSRun t_DCDCbuck_LSS
RUN
50 μs
DC-DC Turn on Time TDCDC_ON 2.211 ms
DC-DC Settling Time for
increasing voltage
TDCDC_SETTLE_buck 3.11 ms/V
DC-DC Settling Time for
decreasing voltage
C = capacitance
attached to the DC-
DC V1P8 output rail.
V1 = the initial output
voltage of the DC-DC
V2 = the final output
voltage of the DC-DC
I2 = the load on the
DC-DC output
expressed in
Amperes.
TDCDC_SETTLE_buck (C*(V1–
V2)/I2
s
VDD_1P8 ripple Typical ripple based
on NXP
recommended
hardware
configuration and
typical loading (MCU
only; no extra loads
placed on DC-DC
outputs)
VDD_1P8ripple 30 mV
VDD_1P5 ripple Typical ripple based
on NXP
recommended
hardware
configuration and
typical loading (MCU
only; no extra loads
placed on DC-DC
outputs)
VDD_1P5ripple 30 mV
1. This is the steady state DC output power. Excessive transient current load from external device causes 1p8V and 1P5
output voltage unregulated temporary.
2. This is the frequency that is observed at LN and LP pins.
3. DC-DC reference frequency derives from the RF oscillator or the DC-DC internal oscillator.
4. The voltage output level can be controlled by programming DCDC_VDD1P8CTRL_TRG field in DCDC_REG3.
5. In Buck mode, the maximum VDD_1P8 output is the minimum of either VDCDC_IN_BUCK minus 50 mV or 3.5 V. For
example, if VDCDC_IN = 2.1 V, maximum VDD_1P8 is 2.05 V. If VDCDC_IN = 3.6 V, maximum VDD_1P8 is 3.5 V.
6. The output current specification in buck mode represents the maximum current the DC-DC converter can deliver. The
KW36A/35A/34A radio and MCU blocks current consumption is not excluded. The maximum output power of the DC-DC
converter is 140 mW when VDCDC_IN is below 2.7 V and 195 mW when VDCDC_IN is above 2.7 V. The available supply
current for external device depends on the energy consumed by the internal peripherals in KW36A/35A/34A.
7. When using DC-DC in low-power mode (pulsed mode), current load must be less than 1 mA.
8. User needs to program DCDC_VDD1P5CTRL_TRG_BUCK field in DCDC_REG3 register to ensure that a worst case
minimum of 1.45 V is available as VDD_1P5_buck. VDD_1P5 must not be programmed higher than VDD_1P8.
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9. User needs to program DCDC_VDD1P5CTRL_TRG_BUCK field in DCDC_REG3 register to ensure that a worst case
minimum of 1.55 V is available as VDD_1P5_buck. VDD_1P5 must not be programmed higher than VDD_1P8.
10. 1.5 V is intended to supply power to KW36A/35A/34A. It is not designed to supply power to an external device.
11. Turn on time is measured from the application of power (to DCDC_IN) till the DCDC_REG0[DCDC_STS_DC_OK] bit
is set. Code execution may begin before the DCDC_REG0[DCDC_STS_DC_OK] bit is set. The full device
specification is not guaranteed until the bit sets.
6.7 Ratings
6.7.1 Thermal handling ratings
Table 43. Thermal handling ratings
Symbol Description Min. Max. Unit Notes
TSTG Storage temperature –55 150 °C 1
TSDR Solder temperature, lead-free 260 °C 2
1. Determined according to JEDEC Standard JESD22-A103, High Temperature Storage Life.
2. Determined according to IPC/JEDEC Standard J-STD-020, Moisture/Reflow Sensitivity Classification for Nonhermetic
Solid State Surface Mount Devices.
6.7.2 Moisture handling ratings
Table 44. Moisture handling ratings
Symbol Description Min. Max. Unit Notes
MSL Moisture sensitivity level 3 1
1. Determined according to IPC/JEDEC Standard J-STD-020, Moisture/Reflow Sensitivity Classification for Nonhermetic
Solid State Surface Mount Devices.
6.7.3 ESD handling ratings
Table 45. ESD handling ratings
Symbol Description Min. Max. Unit Notes
VHBM Electrostatic discharge voltage, human body model –2000 +2000 V 1
VCDM Electrostatic discharge voltage, charged-device model 2
All pins except the corner pins –500 500 V
Corner pins only –750 750 V
ILAT Latch-up current at ambient temperature of 105 °C –100 +100 mA 3
1. Determined according to JEDEC Standard JESD22-A114, Electrostatic Discharge (ESD) Sensitivity Testing Human
Body Model (HBM).
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2. Determined according to JEDEC Standard JESD22-C101, Field-Induced Charged-Device Model Test Method for
Electrostatic-Discharge-Withstand Thresholds of Microelectronic Components.
3. Determined according to JEDEC Standard JESD78, IC Latch-Up Test.
6.7.4 Voltage and current operating ratings
Table 46. Voltage and current operating ratings
Symbol Description Min. Max. Unit
VDD Digital supply voltage –0.3 3.8 V
IDD Digital supply current 120 mA
VIO IO pin input voltage –0.3 VDD + 0.3 V
IDInstantaneous maximum current single pin limit (applies to
all port pins)
–25 25 mA
VDDA Analog supply voltage VDD – 0.3 VDD + 0.3 V
VIO_DCDC IO pins in the DC-DC voltage domain (DCDC_CFG and
PSWITCH)
GND VDCDC V
7 Pin Diagrams and Pin Assignments
7.1 KW36A Signal Multiplexing and Pin Assignments
The following table shows the signals available on each pin and the locations of these
pins on the devices supported by this document. The Port Control and Interrupt Module
is used to select the functionality for each GPIO pin. ALT0 is reserved for analog
functions on some GPIO pins. ALT1 – ALT9 are assigned to the available digital
functions on each GPIO pin. GPIO pins with a default of “disabled” are high impedance
after reset – their input and output buffers are disabled.
40
"Wett
able"
HVQ
FN
48
"Wett
able"
HVQ
FN
48
LQF
N
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
4 4 PTA16 DISABLED PTA16/
LLWU_P4
SPI1_
SOUT
LPUART1_
RTS_b
TPM0_
CH0
5 5 PTA17 DISABLED PTA17/
LLWU_P5
SPI1_SIN LPUART1_
RX
CAN0_TX TPM_
CLKIN1
6 6 PTA18 DISABLED PTA18/
LLWU_P6
SPI1_SCK LPUART1_
TX
CAN0_RX TPM2_
CH0
Pin Diagrams and Pin Assignments
72 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
40
"Wett
able"
HVQ
FN
48
"Wett
able"
HVQ
FN
48
LQF
N
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
7 7 PTA19 ADC0_SE5 ADC0_SE5 PTA19/
LLWU_P7
SPI1_
PCS0
LPUART1_
CTS_b
TPM2_
CH1
24 24 ADC0_DP0 ADC0_
DP0/
CMP0_IN0
ADC0_
DP0/
CMP0_IN0
25 25 ADC0_
DM0
ADC0_
DM0/
CMP0_IN1
ADC0_
DM0/
CMP0_IN1
41 41 PTC5 DISABLED PTC5/
LLWU_
P13/
RF_NOT_
ALLOWED
LPTMR0_
ALT2
LPUART0_
RTS_b
TPM1_
CH1
BSM_CLK
42 42 PTC6 DISABLED PTC6/
LLWU_
P14/
RF_
RFOSC_
EN
I2C1_SCL LPUART0_
RX
TPM2_
CH0
BSM_
FRAME
43 43 PTC7 DISABLED PTC7/
LLWU_P15
SPI0_
PCS2
I2C1_SDA LPUART0_
TX
TPM2_
CH1
BSM_
DATA
1 48 48 PTC19 DISABLED PTC19/
LLWU_P3/
RF_
EARLY_
WARNING
SPI0_
PCS0
I2C0_SCL LPUART0_
CTS_b
BSM_CLK LPUART1_
CTS_b
2 1 1 PTA0 SWD_DIO PTA0 SPI0_
PCS1
TPM1_
CH0
SWD_DIO
3 2 2 PTA1 SWD_CLK PTA1 SPI1_
PCS0
TPM1_
CH1
SWD_CLK
4 3 3 PTA2 RESET_b PTA2 TPM0_
CH3
RESET_b
5 8 8 PSWITCH PSWITCH PSWITCH
6 9 9 DCDC_
CFG
DCDC_
CFG
DCDC_
CFG
7 9 10 VDCDC_IN VDCDC_IN VDCDC_IN
8 10 11 DCDC_LP DCDC_LP DCDC_LP
9 11 13 DCDC_
GND
DCDC_
GND
DCDC_
GND
10 12 12 DCDC_LN DCDC_LN DCDC_LN
11 13 14 VDD_
1P8OUT
VDD_
1P8OUT
VDD_
1P8OUT
12 14 DCDC_LN DCDC_LN DCDC_LN
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 73
NXP Semiconductors
40
"Wett
able"
HVQ
FN
48
"Wett
able"
HVQ
FN
48
LQF
N
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
13 15 15 VDD_
1P5OUT_
PMCIN
VDD_
1P5OUT_
PMCIN
VDD_
1P5OUT_
PMCIN
14 16 16 PTB0 DISABLED PTB0/
LLWU_P8/
RF_
RFOSC_
EN
I2C0_SCL CMP0_
OUT
TPM0_
CH1
CLKOUT CAN0_TX
15 17 17 PTB1 ADC0_
SE1/
CMP0_IN5
ADC0_
SE1/
CMP0_IN5
PTB1/
RF_
PRIORITY
DTM_RX I2C0_SDA LPTMR0_
ALT1
TPM0_
CH2
CMT_IRO CAN0_RX
16 18 18 PTB2 ADC0_
SE3/
CMP0_IN3
ADC0_
SE3/
CMP0_IN3
PTB2/
RF_NOT_
ALLOWED
DTM_TX TPM1_
CH0
17 19 19 PTB3 ADC0_
SE2/
CMP0_IN4
ADC0_
SE2/
CMP0_IN4
PTB3/
ERCLK32K
LPUART1_
RTS_b
CLKOUT TPM1_
CH1
RTC_
CLKOUT
18 20 20 VDD_0 VDD_0 VDD_0
19 21 21 PTB16 EXTAL32K EXTAL32K PTB16 LPUART1_
RX
I2C1_SCL TPM2_
CH0
20 22 22 PTB17 XTAL32K XTAL32K PTB17 LPUART1_
TX
I2C1_SDA TPM2_
CH1
BSM_CLK
21 23 23 PTB18 NMI_b ADC0_
SE4/
CMP0_IN2
PTB18 LPUART1_
CTS_b
I2C1_SCL TPM_
CLKIN0
TPM0_
CH0
NMI_b
22 26 26 VREFL/
VSSA
VREFL/
VSSA
VREFL/
VSSA
23 27 27 VREFH/
VREF_
OUT
VREFH/
VREF_
OUT
VREFH/
VREF_
OUT
24 28 28 VDDA VDDA VDDA
25 29 29 XTAL_OUT XTAL_OUT XTAL_OUT
26 30 30 EXTAL EXTAL EXTAL
27 31 31 XTAL XTAL XTAL
28 32 32 VDD_RF3 VDD_RF3 VDD_RF3
29 33 33 ANT ANT ANT
30 34 34 GANT GANT GANT
31 35 35 VDD_RF2 VDD_RF2 VDD_RF2
32 36 36 VDD_RF1 VDD_RF1 VDD_RF1
33 37 37 PTC1 DISABLED PTC1/
RF_
EARLY_
WARNING
I2C0_SDA LPUART0_
RTS_b
TPM0_
CH2
SPI1_SCK BSM_CLK
Pin Diagrams and Pin Assignments
74 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
40
"Wett
able"
HVQ
FN
48
"Wett
able"
HVQ
FN
48
LQF
N
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
34 38 38 PTC2 DISABLED PTC2/
LLWU_P10
TX_
SWITCH
I2C1_SCL LPUART0_
RX
CMT_IRO DTM_RX SPI1_
SOUT
BSM_
FRAME
35 39 39 PTC3 DISABLED PTC3/
LLWU_P11
RX_
SWITCH
I2C1_SDA LPUART0_
TX
TPM0_
CH1
DTM_TX SPI1_SIN CAN0_TX
36 40 40 PTC4 DISABLED PTC4/
LLWU_
P12/
BLE_RF_
ACTIVE
EXTRG_IN LPUART0_
CTS_b
TPM1_
CH0
BSM_
DATA
SPI1_
PCS0
CAN0_RX
37 44 44 VDD_1 VDD_1 VDD_1
38 45 45 PTC16 DISABLED PTC16/
LLWU_P0/
RF_
STATUS
SPI0_SCK I2C0_SDA LPUART0_
RTS_b
TPM0_
CH3
LPUART1_
RTS_b
39 46 46 PTC17 DISABLED PTC17/
LLWU_P1/
RF_EXT_
OSC_EN
SPI0_
SOUT
I2C1_SCL LPUART0_
RX
BSM_
FRAME
DTM_RX LPUART1_
RX
40 47 47 PTC18 DISABLED PTC18/
LLWU_P2
SPI0_SIN I2C1_SDA LPUART0_
TX
BSM_
DATA
DTM_TX LPUART1_
TX
41 49 49-64 Ground NA
7.2 KW36A Pinouts
KW36A device pinouts are shown in the figures below.
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 75
NXP Semiconductors
40
39
38
37
PTC18
PTC17
PTC16
VDD_1
36
35
34
33
PTC4
PTC3
PTC2
PTC1
32
31
VDD_RF1
VDD_RF2
DCDC_LN
VDD_1P8OUT
12
11
PTB17
PTB16
VDD_0
PTB3
20
19
18
17
PTB2
PTB1
PTB0
VDD_1P5OUT_PMCIN
16
15
14
13
30
29
28
27
26
25
GANT
ANT
VDD_RF3
XTAL
EXTAL
XTAL_OUT
24
23
22
21
VDDA
VREFH/VREF_OUT
VREFL/VSSA
PTB18
DCDC_LN
DCDC_GND
DCDC_LP
VDCDC_IN
DCDC_CFG
PSWITCH
PTA2
PTA1
PTA0
PTC19
10
9
8
7
6
5
4
3
2
1
41
*pin 41 is ground
Figure 20. 40-pin "Wettable" HVQFN pinout diagram
Pin Diagrams and Pin Assignments
76 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
DCDC_LN
DCDC_LP
VDCDC_IN
DCDC_CFG
PSWITCH
PTA19
PTA18
PTA17
PTA16
PTA2
PTA1
PTA0
12
11
10
9
8
7
6
5
4
3
2
1
48
47
46
45
44
43
42
41
40
39
38
37
PTC19
PTC18
PTC17
PTC16
VDD_1
PTC7
PTC6
PTC5
PTC4
PTC3
PTC2
PTC1
36
35
34
33
VDD_RF1
VDD_RF2
GANT
ANT
32
31
30
29
28
27
26
25
VDD_RF3
XTAL
EXTAL
XTAL_OUT
VDDA
VREFH/VREF_OUT
VREFL/VSSA
ADC0_DM0
VDD_0
PTB3
PTB2
PTB1
24
23
22
21
20
19
18
17
PTB0
VDD_1P5OUT_PMCIN
VDD_1P8OUT
DCDC_GND
16
15
14
13
ADC0_DP0
PTB18
PTB17
PTB16
49 50 51 52
53 54 55 56
57 58 59 60
61 62 63 64
*pin 49 - 64 are ground
Figure 21. 48-pin LQFN pinout diagram
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 77
NXP Semiconductors
DCDC_LN
DCDC_GND
DCDC_LP
PSWITCH
PTA19
PTA18
PTA17
PTA16
PTA2
PTA1
PTA0
12
11
10
9
8
7
6
5
4
3
2
1
48
47
46
45
44
43
42
41
40
39
38
37
PTC19
PTC18
PTC17
PTC16
VDD_1
PTC7
PTC6
PTC5
PTC4
PTC3
PTC2
PTC1
36
35
34
33
VDD_RF1
VDD_RF2
GANT
ANT
32
31
30
29
28
27
26
25
VDD_RF3
XTAL
EXTAL
XTAL_OUT
VDDA
VREFH/VREF_OUT
VREFL/VSSA
ADC0_DM0
VDD_0
PTB3
PTB2
PTB1
24
23
22
21
20
19
18
17
PTB0
VDD_1P5OUT_PMCIN
DCDC_LN
VDD_1P8OUT
16
15
14
13
ADC0_DP0
PTB18
PTB17
PTB16
49
*pin 49 is ground
DCDC_CFG/VDCDC_IN
Figure 22. 48-pin "Wettable" HVQFN pinout diagram
7.3 KW35A Signal Multiplexing and Pin Assignments
The following table shows the signals available on each pin and the locations of these
pins on the devices supported by this document. The Port Control and Interrupt Module
is used to select the functionality for each GPIO pin. ALT0 is reserved for analog
functions on some GPIO pins. ALT1 – ALT9 are assigned to the available digital
functions on each GPIO pin. GPIO pins with a default of “disabled” are high impedance
after reset – their input and output buffers are disabled.
Pin Diagrams and Pin Assignments
78 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
40
"Wett
able"
HVQ
FN
48
"Wett
able"
HVQ
FN
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
4 PTA16 DISABLED PTA16/
LLWU_P4
SPI1_
SOUT
TPM0_CH0
5 PTA17 DISABLED PTA17/
LLWU_P5
SPI1_SIN TPM_
CLKIN1
6 PTA18 DISABLED PTA18/
LLWU_P6
SPI1_SCK TPM2_CH0
7 PTA19 ADC0_SE5 ADC0_SE5 PTA19/
LLWU_P7
SPI1_PCS0 TPM2_CH1
24 ADC0_DP0 ADC0_
DP0/
CMP0_IN0
ADC0_
DP0/
CMP0_IN0
25 ADC0_DM0 ADC0_
DM0/
CMP0_IN1
ADC0_
DM0/
CMP0_IN1
41 PTC5 DISABLED PTC5/
LLWU_P13/
RF_NOT_
ALLOWED
LPTMR0_
ALT2
LPUART0_
RTS_b
TPM1_CH1 BSM_CLK
42 PTC6 DISABLED PTC6/
LLWU_P14/
RF_
RFOSC_
EN
I2C1_SCL LPUART0_
RX
TPM2_CH0 BSM_
FRAME
43 PTC7 DISABLED PTC7/
LLWU_P15
SPI0_PCS2 I2C1_SDA LPUART0_
TX
TPM2_CH1 BSM_DATA
1 48 PTC19 DISABLED PTC19/
LLWU_P3/
RF_
EARLY_
WARNING
SPI0_PCS0 I2C0_SCL LPUART0_
CTS_b
BSM_CLK
2 1 PTA0 SWD_DIO PTA0 SPI0_PCS1 TPM1_CH0 SWD_DIO
3 2 PTA1 SWD_CLK PTA1 SPI1_PCS0 TPM1_CH1 SWD_CLK
4 3 PTA2 RESET_b PTA2 TPM0_CH3 RESET_b
5 8 PSWITCH PSWITCH PSWITCH
6 9 DCDC_
CFG
DCDC_
CFG
DCDC_
CFG
7 9 VDCDC_IN VDCDC_IN VDCDC_IN
8 10 DCDC_LP DCDC_LP DCDC_LP
9 11 DCDC_
GND
DCDC_
GND
DCDC_
GND
10 12 DCDC_LN DCDC_LN DCDC_LN
11 13 VDD_
1P8OUT
VDD_
1P8OUT
VDD_
1P8OUT
12 14 DCDC_LN DCDC_LN DCDC_LN
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 79
NXP Semiconductors
40
"Wett
able"
HVQ
FN
48
"Wett
able"
HVQ
FN
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
13 15 VDD_
1P5OUT_
PMCIN
VDD_
1P5OUT_
PMCIN
VDD_
1P5OUT_
PMCIN
14 16 PTB0 DISABLED PTB0/
LLWU_P8/
RF_
RFOSC_
EN
I2C0_SCL CMP0_
OUT
TPM0_CH1 CLKOUT
15 17 PTB1 ADC0_SE1/
CMP0_IN5
ADC0_SE1/
CMP0_IN5
PTB1/
RF_
PRIORITY
DTM_RX I2C0_SDA LPTMR0_
ALT1
TPM0_CH2 CMT_IRO
16 18 PTB2 ADC0_SE3/
CMP0_IN3
ADC0_SE3/
CMP0_IN3
PTB2/
RF_NOT_
ALLOWED
DTM_TX TPM1_CH0
17 19 PTB3 ADC0_SE2/
CMP0_IN4
ADC0_SE2/
CMP0_IN4
PTB3/
ERCLK32K
CLKOUT TPM1_CH1 RTC_
CLKOUT
18 20 VDD_0 VDD_0 VDD_0
19 21 PTB16 EXTAL32K EXTAL32K PTB16 I2C1_SCL TPM2_CH0
20 22 PTB17 XTAL32K XTAL32K PTB17 I2C1_SDA TPM2_CH1 BSM_CLK
21 23 PTB18 NMI_b ADC0_SE4/
CMP0_IN2
PTB18 I2C1_SCL TPM_
CLKIN0
TPM0_CH0 NMI_b
22 26 VREFL/
VSSA
VREFL/
VSSA
VREFL/
VSSA
23 27 VREFH/
VREF_OUT
VREFH/
VREF_OUT
VREFH/
VREF_OUT
24 28 VDDA VDDA VDDA
25 29 XTAL_OUT XTAL_OUT XTAL_OUT
26 30 EXTAL EXTAL EXTAL
27 31 XTAL XTAL XTAL
28 32 VDD_RF3 VDD_RF3 VDD_RF3
29 33 ANT ANT ANT
30 34 GANT GANT GANT
31 35 VDD_RF2 VDD_RF2 VDD_RF2
32 36 VDD_RF1 VDD_RF1 VDD_RF1
33 37 PTC1 DISABLED PTC1/
RF_
EARLY_
WARNING
I2C0_SDA LPUART0_
RTS_b
TPM0_CH2 SPI1_SCK BSM_CLK
34 38 PTC2 DISABLED PTC2/
LLWU_P10
TX_
SWITCH
I2C1_SCL LPUART0_
RX
CMT_IRO DTM_RX SPI1_
SOUT
BSM_
FRAME
35 39 PTC3 DISABLED PTC3/
LLWU_P11
RX_
SWITCH
I2C1_SDA LPUART0_
TX
TPM0_CH1 DTM_TX SPI1_SIN
Pin Diagrams and Pin Assignments
80 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
40
"Wett
able"
HVQ
FN
48
"Wett
able"
HVQ
FN
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
36 40 PTC4 DISABLED PTC4/
LLWU_P12/
BLE_RF_
ACTIVE
EXTRG_IN LPUART0_
CTS_b
TPM1_CH0 BSM_DATA SPI1_PCS0
37 44 VDD_1 VDD_1 VDD_1
38 45 PTC16 DISABLED PTC16/
LLWU_P0/
RF_
STATUS
SPI0_SCK I2C0_SDA LPUART0_
RTS_b
TPM0_CH3
39 46 PTC17 DISABLED PTC17/
LLWU_P1/
RF_EXT_
OSC_EN
SPI0_
SOUT
I2C1_SCL LPUART0_
RX
BSM_
FRAME
DTM_RX
40 47 PTC18 DISABLED PTC18/
LLWU_P2
SPI0_SIN I2C1_SDA LPUART0_
TX
BSM_DATA DTM_TX
41 49 Ground NA
7.4 KW35A Pinouts
KW35A device pinouts are shown in the figures below.
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 81
NXP Semiconductors
40
39
38
37
PTC18
PTC17
PTC16
VDD_1
36
35
34
33
PTC4
PTC3
PTC2
PTC1
32
31
VDD_RF1
VDD_RF2
DCDC_LN
VDD_1P8OUT
12
11
PTB17
PTB16
VDD_0
PTB3
20
19
18
17
PTB2
PTB1
PTB0
VDD_1P5OUT_PMCIN
16
15
14
13
30
29
28
27
26
25
GANT
ANT
VDD_RF3
XTAL
EXTAL
XTAL_OUT
24
23
22
21
VDDA
VREFH/VREF_OUT
VREFL/VSSA
PTB18
DCDC_LN
DCDC_GND
DCDC_LP
VDCDC_IN
DCDC_CFG
PSWITCH
PTA2
PTA1
PTA0
PTC19
10
9
8
7
6
5
4
3
2
1
41
*pin 41 is ground
Figure 23. 40-pin "Wettable" HVQFN pinout diagram
Pin Diagrams and Pin Assignments
82 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
DCDC_LN
DCDC_GND
DCDC_LP
PSWITCH
PTA19
PTA18
PTA17
PTA16
PTA2
PTA1
PTA0
12
11
10
9
8
7
6
5
4
3
2
1
48
47
46
45
44
43
42
41
40
39
38
37
PTC19
PTC18
PTC17
PTC16
VDD_1
PTC7
PTC6
PTC5
PTC4
PTC3
PTC2
PTC1
36
35
34
33
VDD_RF1
VDD_RF2
GANT
ANT
32
31
30
29
28
27
26
25
VDD_RF3
XTAL
EXTAL
XTAL_OUT
VDDA
VREFH/VREF_OUT
VREFL/VSSA
ADC0_DM0
VDD_0
PTB3
PTB2
PTB1
24
23
22
21
20
19
18
17
PTB0
VDD_1P5OUT_PMCIN
DCDC_LN
VDD_1P8OUT
16
15
14
13
ADC0_DP0
PTB18
PTB17
PTB16
49
*pin 49 is ground
DCDC_CFG/VDCDC_IN
Figure 24. 48-pin "Wettable" HVQFN pinout diagram
7.5 KW34A Signal Multiplexing and Pin Assignments
The following table shows the signals available on each pin and the locations of these
pins on the devices supported by this document. The Port Control and Interrupt
Module is used to select the functionality for each GPIO pin. ALT0 is reserved for
analog functions on some GPIO pins. ALT1 – ALT9 are assigned to the available
digital functions on each GPIO pin. GPIO pins with a default of “disabled” are high
impedance after reset – their input and output buffers are disabled.
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 83
NXP Semiconductors
48
"Wett
able"
HVQ
FN
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
1 PTA0 SWD_DIO PTA0 SPI0_PCS1 TPM1_CH0 SWD_DIO
2 PTA1 SWD_CLK PTA1 SPI1_PCS0 TPM1_CH1 SWD_CLK
3 PTA2 RESET_b PTA2 TPM0_CH3 RESET_b
4 PTA16 DISABLED PTA16/
LLWU_P4
SPI1_SOUT TPM0_CH0
5 PTA17 DISABLED PTA17/
LLWU_P5
SPI1_SIN TPM_
CLKIN1
6 PTA18 DISABLED PTA18/
LLWU_P6
SPI1_SCK TPM2_CH0
7 PTA19 ADC0_SE5 ADC0_SE5 PTA19/
LLWU_P7
SPI1_PCS0 TPM2_CH1
8 PSWITCH PSWITCH PSWITCH
9 DCDC_CFG/
VDCDC_IN
DCDC_CFG/
VDCDC_IN
DCDC_CFG/
VDCDC_IN
10 DCDC_LP DCDC_LP DCDC_LP
11 DCDC_GND DCDC_GND DCDC_GND
12 DCDC_LN DCDC_LN DCDC_LN
13 VDD_
1P8OUT
VDD_
1P8OUT
VDD_
1P8OUT
14 DCDC_LN DCDC_LN DCDC_LN
15 VDD_
1P5OUT_
PMCIN
VDD_
1P5OUT_
PMCIN
VDD_
1P5OUT_
PMCIN
16 PTB0 DISABLED PTB0/
LLWU_P8/
RF_
RFOSC_EN
I2C0_SCL CMP0_OUT TPM0_CH1 CLKOUT
17 PTB1 ADC0_SE1/
CMP0_IN5
ADC0_SE1/
CMP0_IN5
PTB1/
RF_
PRIORITY
DTM_RX I2C0_SDA LPTMR0_
ALT1
TPM0_CH2 CMT_IRO
18 PTB2 ADC0_SE3/
CMP0_IN3
ADC0_SE3/
CMP0_IN3
PTB2/
RF_NOT_
ALLOWED
DTM_TX TPM1_CH0
19 PTB3 ADC0_SE2/
CMP0_IN4
ADC0_SE2/
CMP0_IN4
PTB3/
ERCLK32K
CLKOUT TPM1_CH1 RTC_
CLKOUT
20 VDD_0 VDD_0 VDD_0
21 PTB16 EXTAL32K EXTAL32K PTB16 I2C1_SCL TPM2_CH0
22 PTB17 XTAL32K XTAL32K PTB17 I2C1_SDA TPM2_CH1 BSM_CLK
23 PTB18 NMI_b ADC0_SE4/
CMP0_IN2
PTB18 I2C1_SCL TPM_
CLKIN0
TPM0_CH0 NMI_b
24 ADC0_DP0 ADC0_DP0/
CMP0_IN0
ADC0_DP0/
CMP0_IN0
Pin Diagrams and Pin Assignments
84 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
48
"Wett
able"
HVQ
FN
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
25 ADC0_DM0 ADC0_DM0/
CMP0_IN1
ADC0_DM0/
CMP0_IN1
26 VREFL/
VSSA
VREFL/
VSSA
VREFL/
VSSA
27 VREFH/
VREF_OUT
VREFH/
VREF_OUT
VREFH/
VREF_OUT
28 VDDA VDDA VDDA
29 XTAL_OUT XTAL_OUT XTAL_OUT
30 EXTAL EXTAL EXTAL
31 XTAL XTAL XTAL
32 VDD_RF3 VDD_RF3 VDD_RF3
33 ANT ANT ANT
34 GANT GANT GANT
35 VDD_RF2 VDD_RF2 VDD_RF2
36 VDD_RF1 VDD_RF1 VDD_RF1
37 PTC1 DISABLED PTC1/
RF_EARLY_
WARNING
I2C0_SDA LPUART0_
RTS_b
TPM0_CH2 SPI1_SCK BSM_CLK
38 PTC2 DISABLED PTC2/
LLWU_P10
TX_SWITCH I2C1_SCL LPUART0_
RX
CMT_IRO DTM_RX SPI1_SOUT BSM_
FRAME
39 PTC3 DISABLED PTC3/
LLWU_P11
RX_
SWITCH
I2C1_SDA LPUART0_
TX
TPM0_CH1 DTM_TX SPI1_SIN
40 PTC4 DISABLED PTC4/
LLWU_P12/
BLE_RF_
ACTIVE
EXTRG_IN LPUART0_
CTS_b
TPM1_CH0 BSM_DATA SPI1_PCS0
41 PTC5 DISABLED PTC5/
LLWU_P13/
RF_NOT_
ALLOWED
LPTMR0_
ALT2
LPUART0_
RTS_b
TPM1_CH1 BSM_CLK
42 PTC6 DISABLED PTC6/
LLWU_P14/
RF_
RFOSC_EN
I2C1_SCL LPUART0_
RX
TPM2_CH0 BSM_
FRAME
43 PTC7 DISABLED PTC7/
LLWU_P15
SPI0_PCS2 I2C1_SDA LPUART0_
TX
TPM2_CH1 BSM_DATA
44 VDD_1 VDD_1 VDD_1
45 PTC16 DISABLED PTC16/
LLWU_P0/
RF_STATUS
SPI0_SCK I2C0_SDA LPUART0_
RTS_b
TPM0_CH3
46 PTC17 DISABLED PTC17/
LLWU_P1/
RF_EXT_
OSC_EN
SPI0_SOUT I2C1_SCL LPUART0_
RX
BSM_
FRAME
DTM_RX
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 85
NXP Semiconductors
48
"Wett
able"
HVQ
FN
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 ALT8 ALT9
47 PTC18 DISABLED PTC18/
LLWU_P2
SPI0_SIN I2C1_SDA LPUART0_
TX
BSM_DATA DTM_TX
48 PTC19 DISABLED PTC19/
LLWU_P3/
RF_EARLY_
WARNING
SPI0_PCS0 I2C0_SCL LPUART0_
CTS_b
BSM_CLK
49 Ground NA
7.6 KW34A Pinouts
KW34A device pinouts are shown in the figure below.
Pin Diagrams and Pin Assignments
86 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
DCDC_LN
DCDC_GND
DCDC_LP
PSWITCH
PTA19
PTA18
PTA17
PTA16
PTA2
PTA1
PTA0
12
11
10
9
8
7
6
5
4
3
2
1
48
47
46
45
44
43
42
41
40
39
38
37
PTC19
PTC18
PTC17
PTC16
VDD_1
PTC7
PTC6
PTC5
PTC4
PTC3
PTC2
PTC1
36
35
34
33
VDD_RF1
VDD_RF2
GANT
ANT
32
31
30
29
28
27
26
25
VDD_RF3
XTAL
EXTAL
XTAL_OUT
VDDA
VREFH/VREF_OUT
VREFL/VSSA
ADC0_DM0
VDD_0
PTB3
PTB2
PTB1
24
23
22
21
20
19
18
17
PTB0
VDD_1P5OUT_PMCIN
DCDC_LN
VDD_1P8OUT
16
15
14
13
ADC0_DP0
PTB18
PTB17
PTB16
49
*pin 49 is ground
DCDC_CFG/VDCDC_IN
Figure 25. 48-pin "Wettable" HVQFN pinout diagram
7.7 Module Signal Description Tables
The following sections correlate the chip-level signal name with the signal name used
in the chapter of the module. They also briefly describe the signal function and
direction.
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 87
NXP Semiconductors
7.7.1 Core Modules
This section contains tables describing the core module signal descriptions.
Table 47. SWD Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
SWD_DIO SWD_DIO Serial Wire Debug Data
Input/Output1I/O
SWD_CLK SWD_CLK Serial Wire Clock2I
1. Pulled up internally by default
2. Pulled down internally by default
7.7.2 Radio Modules
This section contains tables describing the radio signals.
Table 48. Radio Module Signal Descriptions
Module Signal Name Pin Direction Pin Name Pin Description
ANT O ANT Antenna
BLE_RF_ACTIVE O BLE_RF_ACTIVE An output which is asserted prior to any Radio event
and remains asserted for the duration of the event.
BSM_CLK O BSM_CLK Bit Streaming Mode (BSM) clock signal. 1 MHz bit
rate clock. BSM_DATA and BSM_FRAME are
synchronized to BSM_CLK. External device should
capture BSM_FRAME and BSM_DATA on rising
edge of BSM_CLK.
BSM_DATA O BSM_DATA Serial Bluetooth LE packet bit stream, LSB-first.
Valid on rising edge of BSM_CLK.
BSM_FRAME O BSM_FRAME Framing signal to indicate the start of reception.
Active high.
DTM_RX I DTM_RX Direct Test Mode Receive
DTM_TX O DTM_TX Direct Test Mode Transmit
GANT I GANT Antenna ground
RF_STATUS O RF_STATUS An output which indicates when the Radio is in an
Rx or Tx event; software can also control this signal
directly.
RF_PRIORITY O RF_PRIORITY An output which indicates to the external WiFi
device that the Radio event is a high priority and it
needs access to the 2.4 GHz antenna.
RF_EARLY_WARNING O RF_EARLY_WARNING Bluetooth LE LL generated signal which can be
used to wake an external sensor to make a
measurement before a Bluetooth LE event.
RF_NOT_ALLOWED I RF_NOT_ALLOWED External signal which causes the internal Radio to
cease radio activity.
Table continues on the next page...
Pin Diagrams and Pin Assignments
88 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 48. Radio Module Signal Descriptions (continued)
Module Signal Name Pin Direction Pin Name Pin Description
RF_TX_CONF I RF_TX_CONF Signal from an external Radio which indicates the
availability of the 2.4 GHz antenna to the internal
Radio.
NOTE: This is a GPIO, not a dedicated PIN.
RX_SWITCH O RX_SWITCH Front End Module receive mode signal.
TX_SWITCH O TX_SWITCH Front End Module transmit mode signal.
Table 49. Radio Module Miscellaneous Pin Descriptions
Pin Name Pad Direction Pin Name Pin Description
RF_INT_OSC_EN I RF_RFOSC_EN External request to turn on the Radio's internal RF
oscillator.
RF_EXT_OSC_EN O RF_EXT_OSC_EN Internal request to turn on an External oscillator for
use by the internal Radio. The request can also be
from the SoC if it is using the RF oscillator as its
clock.
7.7.3 System Modules
This section contains tables describing the system signals.
Table 50. System Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
NMI_b Non-maskable interrupt I
RESET_b Reset bidirectional signal I/O
VDD_[1:0] VDD Power supply I
Ground VSS Ground I
VDD_RF[3:1] VDD_RF Radio power supply I
VDCDC_IN VDCDC_IN VDCDC_IN I
VDD_1P8OUT VDD_1P8 DC-DC 1.8 V Regulated
Output / Input in bypass
I/O
VDD_1P5OUT_PMCIN VDD_1P5/VDD_PMC DC-DC 1.5 V Regulated
Output / PMC Input in
bypass
I/O
PSWITCH PSWITCH DC-DC enable switch I
DCDC_CFG DCDC_CFG DC-DC switch mode select I
DCDC_LP DCDC_LP DC-DC inductor input
positive
I/O
Table continues on the next page...
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 89
NXP Semiconductors
Table 50. System Module Signal Descriptions (continued)
SoC Signal Name Module Signal Name Description I/O
DCDC_LN DCDC_LN DC-DC inductor input
negative
I/O
DCDC_GND DCDC_GND DC-DC ground I
Table 51. LLWU Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
LLWU_P[15:0] LLWU_P[15:0] Wake-up inputs I
7.7.4 Clock Modules
This section contains tables for Clock signal descriptions.
Table 52. Clock Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
EXTAL EXTAL 26 MHz/32 MHz External
clock/Oscillator input
I
XTAL XTAL 26 MHz/32 MHz Oscillator
input
I
XTAL_OUT XTAL_OUT 26 MHz/32 MHz Clock output O
XTAL_OUT_EN XTAL_OUT_ENABLE 26 MHz/32 MHz Clock output
enable for XTAL_OUT
I
EXTAL32K EXTAL32K 32 kHz External clock/
Oscillator input
I
XTAL32K XTAL32K 32 kHz Oscillator input I
CLKOUT CLKOUT Internal clocks monitor O
7.7.5 Analog Modules
This section contains tables for Analog signal descriptions.
Table 53. ADC0 Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
ADC0_DM0 DADM0 ADC Channel 0 Differential
Input Negative
I
Table continues on the next page...
Pin Diagrams and Pin Assignments
90 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 53. ADC0 Signal Descriptions (continued)
SoC Signal Name Module Signal Name Description I/O
ADC0_DP0 DADP0 ADC Channel 0 Differential
Input Positive
I
ADC0_SE[5:1] AD[5:1] ADC Channel 0 Single-ended
Input n
I
VREFH VREFSH Voltage Reference Select
High
I
VDDA VDDA Analog Power Supply I
VSSA VSSA Analog Ground I
Table 54. CMP0 Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
CMP0_IN[5:0] IN[5:0] Analog voltage inputs I
CMP0_OUT CMP0 Comparator output O
Table 55. VREF Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
VREF_OUT VREF_OUT Internally generated voltage
reference output
O
7.7.6 Timer Modules
This section contains tables describing timer module signals.
Table 56. TPM0 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
TPM_CLKIN[1:0] TPM_EXTCLK External clock I
TPM0_CH[3:0] TPM_CH[3:0] TPM channel I/O
Table 57. TPM1 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
TPM_CLKIN[1:0] TPM_EXTCLK External clock I
TPM1_CH[1:0] TPM_CH[1:0] TPM channel I/O
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 91
NXP Semiconductors
Table 58. TPM2 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
TPM_CLKIN[1:0] TPM_EXTCLK External clock I
TPM2_CH[1:0] TPM_CH[1:0] TPM channel I/O
Table 59. LPTMR0 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
LPTMR0_ALT[2:1] LPTMR0_ALT[2:1] Pulse counter input pin I
Table 60. RTC Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
RTC_CLKOUT RTC_CLKOUT 1 Hz square-wave output O
7.7.7 Communication Interfaces
This section contains tables for the signal descriptions for the communication modules.
Table 61. SPI0 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
SPI0_PCS0 PCS0/SS Chip Select/Slave Select I/O
SPI0_PCS[2:1] PCS[2:1] Chip Select O
SPI0_SCK SCK Serial Clock I/O
SPI0_SIN SIN Data In I
SPI0_SOUT SOUT Data Out O
Table 62. SPI1 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
SPI1_PCS0 SPI1_PCS0 Chip Select/Slave Select I/O
SPI1_SCK SCK Serial Clock I/O
SPI1_SIN SIN Data In I
SPI1_SOUT SOUT Data Out O
Pin Diagrams and Pin Assignments
92 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 63. I2C0 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
I2C0_SCL SCL I2C serial clock line I/O
I2C0_SDA SDA I2C serial data line I/O
Table 64. I2C1 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
I2C1_SCL SCL I2C serial clock line I/O
I2C1_SDA SDA I2C serial data line I/O
Table 65. CAN0 Signal Descriptions (KW36 only)
SoC Signal Name Module Signal Name Description I/O
CAN0_RX CAN RX CAN Receive Pin I
CAN0_TX CAN TX CAN Transmit Pin O
Table 66. LPUART0 Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
LPUART0_CTS_b LPUART CTS Clear To Send I
LPUART0_RTS_b LPUART RTS Request To Send O
LPUART0_RX LPUART RxD Receive Data I
LPUART0_TX LPUART TxD Transmit Data1I/O
1. This pin is normally an output, but is an input (tristated) in single wire mode whenever the transmitter is disabled or
transmit direction is configured for receive data
Table 67. LPUART1 Module Signal Descriptions (KW36 only)
SoC Signal Name Module Signal Name Description I/O
LPUART1_CTS_b LPUART CTS Clear To Send I
LPUART1_RTS_b LPUART RTS Request To Send O
LPUART1_RX LPUART RxD Receive Data I
LPUART1_TX LPUART TxD Transmit Data1I/O
1. This pin is normally an output, but is an input (tristated) in single wire mode whenever the transmitter is disabled or
transmit direction is configured for receive data
Pin Diagrams and Pin Assignments
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 93
NXP Semiconductors
7.7.8 Human-Machine Interfaces(HMI)
This section contains tables describing the HMI signals.
Table 68. GPIO Module Signal Descriptions
SoC Signal Name Module Signal Name Description I/O
PTA[19:16][2:0] PORTA19-16, 2-0 General Purpose Input/
Output
I/O
PTB[18:16][3:0] PORTB18-16, 3-0 General Purpose Input/
Output
I/O
PTC[19:16][7:1] PORTC19-16, 7-1 General Purpose Input/
Output
I/O
8 Package Information
8.1 Obtaining package dimensions
Package dimensions are available in package drawings.
To find a package drawing, go to nxp.com and perform a keyword search for the
document number of the drawing:
Table 69. Packaging Dimensions
If you want the drawing for this package Then use this document number
40-pin "Wettable" HVQFN (6x6) 98ASA01025D
48-pin LQFN (7x7) 98ASA00694D
48-pin "Wettable" HVQFN (7x7) 98ASA01307D
9 Part identification
9.1 Description
Part numbers for the chip have fields that identify the specific part. You can use the
values of these fields to determine the specific part you have received.
Package Information
94 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
9.2 Format
Part numbers for this device have the following format:
Q KW## A FFF R T PP CC N
9.3 Fields
This table lists the possible values for each field in the part number (not all
combinations are valid):
Table 70. Part number fields descriptions
Field Description Values
Q Qualification status M = Fully qualified, general market flow
P = Prequalification
KW## Kinetis Wireless family KW34
KW35
KW36
A Key attribute A = Automotive Qualification
FFF Program flash memory size 512 = 512 KB
T Temperature range (°C) V = –40 to 105
C = –40 to 85
PP Package identifier HT = 48 LQFN (7 mm x 7 mm)
FP = 40 "Wettable" HVQFN (6 mm x 6 mm)
FT = 48 "Wettable" HVQFN (7 mm x 7 mm)
CC Maximum CPU frequency (MHz) 4 = 48 MHz
N Packaging type (Blank) = Tray
R = Tape and reel
9.4 Example
This is an example part number:
MKW36A512VFT4
Part identification
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 95
NXP Semiconductors
10 Revision History Table 71. Revision History
Rev. No. Date Substantial Changes
Rev 8 05/2020 Updated Tx output power to 5 dBm from 3.5 dBm throughout. Also preceded 5 dBM with a
plus "+" sign.
Replaced VDD_XTAL with VDD_RF3.
Appended the second row 'Supply current Rx On with DC-DC converter enable' with the
following text: VDD_1P5_buck=1.5 V in Receiver Feature Summary.
In Top level Transmitter Specifications - Table 5 :
Appended the rows for supply current Tx On with PRF and DC-DC converter enabled
for 0 dBM with VDD_1P5_buck=1.5 V.
Added rows related to supply current Tx On with PRF = +3.5 dBm and 5dBm along
with associated footnotes.
Updated symbol of Output RF Frequency to fRFout from fin.
Added row for maximum RF Output Power; LDO-HF bumped along with an
associated footnote.
Added Figure 5.
Added Table 7. Also modified title of Table 6.
Added VDD_1P5 specification in Voltage and current operating requirements.
Added VPOR_VDD_1P5 specification in LVD and POR operating requirements
Added VOH performance for normal drive pad at 1.71 V ≤ VDD ≤ 2.7 V, IOH = –1 mA in
Voltage and current operating behaviors.
Added Table 17. Also updated title of Table 16.
Updated VCDM ratings in ESD handling ratings.
Added VDD_1P5 symbol to "Bypass Mode Supply Voltage (RF and Analog)" in Table 41.
In Table 42 :
Updated specifications of DC-DC Converter Output Power. Added conditions,
VDCDC_IN above 2.7 V and below 2.7 V.
Updated specifications of 1.8 V Output Current.
Updated minimum value to 1.45 V in "1.5 V Voltage Output" for Pout<=+3.5 dBM.
Updated the corresponding footnote with the correct value of 1.45 V.
Added a separate row for "1.5 V Voltage Output" for Pout=+5 dBM along with a
footnote.
Updated maximum value of 1.5 V Output Current to 45.
Rev 7 09/2019 Removed flash access control feature from Security Features.
Added the following footnote to Table 14 : "The device was configured in buck mode auto-
start to perform the measurements. The DCDC_IN was powered with 3.0 V. VDD_1P8OUT
was configured to output 1.8 V and VDD_1P5OUT_PMCIN was configured to output 1.5 V."
Added the following footnote to VLPS, LLSx and VLLSx modes: "DCDC configured in
pulsed mode." in Table 14.
Added thermal attributes for 48-pin "Wettable" HVQFN package, and replaced standard
JESD51-2 with JESD51-2A in the footnotes in Thermal attributes.
Removed "Flash timing specifications – program and erase" and "Flash high voltage current
behaviors" tables.
Added DCDC internal oscillator row in Table 41.
Updated Table 42 as follows:
In Switching Frequency row, updated the Typical value to DCDC reference frequency
divided by 16 and added the following footnote to it: "DCDC reference frequency is
derived from the RF oscillator or the DCDC internal oscillator".
Added VDD_1P8 ripple and VDD_1P5 ripple rows.
Table continues on the next page...
Revision History
96 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 71. Revision History (continued)
Rev. No. Date Substantial Changes
Updated introductory text beginning "The Port Control and Interrupt Module is used to select
the functionality for...." in KW36A Signal Multiplexing and Pin Assignments. Same update
done for KW35A and KW34A as well.
Updated "DEFAULT" column to correct "DISABLED" status of PTA19, PTB1/2/3 pin names
in KW36/35/34 pinouts.
Rev 7
Draft B
04/2019 Added "Top Line Marking" column to the Orderable parts details table.
Removed "Galois counter mode (AES-GCM)" and "DES modes" features of LTC from
Security Features.
Removed "Logic Input Voltage Low/High" rows from Table 2.
Removed the following footnote from Table 13 : "Supported through the connectivity
software in its pre-defined Deep Sleep Modes.".
Updated Typical value of IDD_RUN at 70 °C to 5.92 in Table 14.
Added "48-pin Wettable HVQFN" column to Thermal attributes.
Corrected name of vec_xtal32 to vec_extal32 in 32 kHz Oscillator Frequency Specifications.
Updated minimum and maximum values of "1.5V Output Voltage" in Table 42. Also
specified the condition as "Consumed by radio".
Corrected location of ground pins in 48-pin LQFN pinout diagram - Figure 21.
Removed CAN0 and LPUART1 references from KW34A Signal Multiplexing and Pin
Assignments.
Rev 7
Draft A
11/2018 Added following part numbers: MKW36A512VFT4, MKW35A512VFT4, and
MKW34A512VFT4
Added 48 "Wettable" QFN package details including pin diagrams and assignments.
Changed 40-pin "Wettable" QFN and 48-pin "Wettable" QFN to 40-pin "Wettable" HVQFN
and 48-pin "Wettable" HVQFN throughout.
Applied new NXP Brand Guidelines for Bluetooth Low Energy.Removed references of BLE
and replaced with Bluetooth LE.
Added the following footnote in Table 6 : "TX continuous wave power output at the RF pins
with the recommended matching components mounted on PCB.".
Corrected maximum value of VDD_1P8 output in the footnote 6, in Table 42. DC-DC
Converter Specifications, from 3 V to 3.5 V.
Removed silicon revision (R) field from Table 68. Part number fields descriptions.
Rev 6 09/2018 Changed ARM to Arm and applied registered trademark to Cortex on first instance.
Updated Related Resources table for Web release.
Updated Introduction section to remove industrial details.
Added space between value and unit throughout.
Removed SPI Clock Rate row from Radio Operating Conditions.
Added figure title to Figure 3 in the topic Transmit and PLL Feature Summary.
Updated max values of IDD_STOP, IDD_LLS3/LLS2, IDD_VLLS0 (POR PO = ) in Table 13
Updated Table 25 and Table 26.
Updated Table 27 - Flash command timing specifications.
Updated Table 28 - NVM reliability specifications.
Backpage was also updated.
Rev 5 07/2018 Updated title of the document to 'MKW36A/35A Data Sheet' from 'MKW35A/36A Data
Sheet'.
Updated SoC name KW35A with KW36A/35A throughout.
Replaced QFN with "Wettable" QFN throughout
Added package drawings on front page and updated features under Multi-Standard Radio
section as follows: Modulation index: added 1.0 to the list.
Updated Typical Rx Current and Typical Tx current values to 6.3 mA and 5.7 mA
respectively.
Updated Low Power Mode (VLLS0) Current value to 258 nA from 182 nA.
Replaced column name "Tier" with "Qualification" in this table.
Table continues on the next page...
Revision History
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 97
NXP Semiconductors
Table 71. Revision History (continued)
Rev. No. Date Substantial Changes
Updated Introduction section.
Removed Radio version number "V2.1" from Block Diagram.
Updated Radio features, Microcontroller features, and System features.
Appended "(Zero IF)" to Direct Conversion Receiver in Transceiver Description.
Edited Key Specifications.
Updated Receiver Sensitivity to –99 from –100 dBm in Radio features. Also added support
of 1 Mbps PHY to BLE link Layer hardware.
Updated typical and minimum values in Table 3. Also updated footnote 7 to "BLE adjacent
and alternate selectivity performance is measured with modulated interference signals.".
In Table 4 :
updated and added receiver specifications with GFSK modulations, and
updated footnote as follows: "Selectivity measured with an unmodulated blocker
except for GFSK BT=0.5, h=0.5 1mbps and GFSK BT=0.5, h=0.32 1mbps. The
desired signal is set at –85 dBm."
.
Updated typical and maximum values in Table 5. Also updated footnote for TXH2 and TXH3
symbols as follows: "Harmonic Levels based on recommended 2 component match.
Transmit harmonic levels depend on the quality of matching components. Additional
harmonic margin using a 3rd matching component (1x shunt capacitor) is possible."
Updated typical and maximum values in Table 13 and Table 14.
Updated typical values in Table 16. Also added specifications of STOP and RUN modes of
radio state Tx (at +3.5 dBm).
Updated 48-pin LQFN and 40-pin QFN values in Thermal attributes table. Removed thermal
metrics and kept thermal attributes RθJA and ΨJT. Also updated notes and added
information about how to use the thermal characterization parameter, ΨJT.
Added following text in Reference Oscillator Specification : "The table below shows the
recommended crystal specifications. Note that these are recommendations.....". Also
updated 32M/26M typical values of Oscillator Startup Time to 500 μs.
Updated typical and maximum values in Table 1
Updated minimum, typical and maximum value of Temp sensor slope in Table 30
Updated Table 1.
Added a footnote under Buck Mode Supply Voltage in Table 41.
Corrected spec name of Buck mode in DC-DC configuration to VDCDC_IN from VDDDCDC_IN
throughout.
In Table 42,
added a footnote for maximum value of DC-DC Converter Output Power,
updated footnote example corresponding to '1.8V Output Voltage',
updated maximum value in '1.8V Output Voltage' from "min(VDCDC_IN_buck, 3)" to
"min(VDCDC_IN_buck, 3.5)",
added VDD_1P8 = 1.8V and VDD_1P5 = 1.5V conditions in 1.8V Output Current, and
added the following information to the footnote corresponding to '1.5V Output
Voltage': "VDD_1P5 must not be programmed higher than VDD_1P8."
Added VIO_DCDC row in Voltage and current operating ratings.
Removed 48-pin LQFN pinout diagram and signal names from KW35A Signal Multiplexing
and Pin Assignments. Also updated signal name at pin 17 and pin 19 of 40 "Wettable" QFN
and 48 LQFN in ALT1 functionality to PTB3/ERCLK32K in KW36A Signal Multiplexing and
Pin Assignments and KW35A Signal Multiplexing and Pin Assignments.
Rev 4 10/2017 BLE version 4.2 updated to 5.0.
Updated maximum value of voltage range to 3.6 V.
Updated Generic FSK modulation BT and receiver sensitivity from –100 dBm to –99 dBm.
Added support of up to 26 devices by Whitelist and 8 private resolvable addresses in
hardware in the section Radio features.
Updated number of GPIO digital pins in the 48-pin package to 25 in Peripheral features.
Table continues on the next page...
Revision History
98 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
Table 71. Revision History (continued)
Rev. No. Date Substantial Changes
Updated note text in Radio operating conditions as follows: "The recommended crystal
accuracy is ±40 ppm including initial accuracy, mechanical, temperature and aging factors."
Updated maximum values in Power mode transition operating behaviors.
Updated Typical values in Table 13 and Table 14.Also added the following note to the tables
for Run mode: "Radio is off".
Minor updates in introductory text of Reference Oscillator Specification section. Also
updated typical value of TOSC to 680 μs in .
Added 32 kHz Oscillator Frequency Specifications section.
Updated Table 42 section.
Added the following parameters: Switching Frequency, Half FET Threshold, Double
FET Threshold, DC-DC Conversion Efficiency, DCDC Settling Time for increasing
voltage and DCDC Settling Time for decreasing voltage.
Updated Typ. value of the 'DCDC Turn on Time' parameter and added a footnote.
Rev 3 06/2017 Updated Typical values in Table 13 and Table 14.
Rev 2 03/2017 Modified structure of the document to include orderable part numbers and Related
Resources table after the features list.
Specified all supported part numbers on the front page.
Specified the baudrate supported by FlexCAN in the features list.
Updated value of minimum input voltage to 1.71 V and output voltage to 1.8 V from 2.7 V.
Also updated minimum voltage value in DCDC buck mode to 2.1 V from 2.7 V.
Changed RSSI Range maximum value to 5 dBm in Table 3 and added the following
footnote: "With RSSI_CTRL_0.RSSI_ADJ field calibrated to account for antenna to RF input
losses.".
Added Table 6 to show mapping relationship between TX_POWER and DBM. Also added
the corresponding graph.
Added DCDC Inductor specifications in Table 41.
Updated Table 42 :
Removed repetitive fields from the table.
Specified Typ. value of "DCDC Transition Operating Behavior" as 50 us.
Updated footnote 3 as follows: "In Buck mode, the maximum VDD_1P8 output is the
minimum of either VDCDC_IN_BUCK minus 50 mV or 3 V. For example, if
VDCDC_IN = 1.85 V, maximum VDD_1P8 is 1.8 V. If VDCDC_IN = 4.2 V, maximum
VDD_1P8 is 3 V.".
Replaced Laminate QFN with LQFN throughout.
Added radio signals in Table 48.
Added document numbers of the supported package drawings in Table 69.
Added Part identification section.
Rev 1 01/2017 Updated maximum supply voltage from 4.2 to 4.25 V.
Corrected MBAN Channel numbering in Channel Plan for Bluetooth Low Energy.
Corrected "Radio" description for VLLS1 and VLLS0 power modes in Table 8.
Updated Section 9 Pin Diagrams and Pin Assignments.
Corrected pin name from VDD_1P45OUT_PMCIN to VDD_1P5OUT_PMCIN
Added ground pads in the pin diagrams
Put Typ. values as TBDs in Table 14, Power consumption operating behaviors - Buck Mode.
Added the following note in Diagram: Typical IDD_RUN operating behavior : "The results in
the following graphs are obtained using the device in Bypass mode."
Put Typ. values as TBDs in Table 16, SoC Power Consumption.
Added TOSC row in , Reference Crystal Specification.
Added DCDC Transition Operating Behavior and DCDC Turn on Time in Table 42, DC-DC
Converter Specifications.
Added the following note in Table 48 for the RF_TX_CONF pin: "This is a GPIO, not a
dedicated PIN."
Table continues on the next page...
Revision History
MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020 99
NXP Semiconductors
Table 71. Revision History (continued)
Rev. No. Date Substantial Changes
Rev 0 11/2016 Initial Internal Release
Revision History
100 MKW36A/35A/34A Data Sheet, Rev. 8, 05/2020
NXP Semiconductors
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Document Number MKW36A512
Revision 8, 05/2020