The Microchip family of low-cost, precision system supervisors
supports microcontrollers, ASICs, digital signal processors and
custom chip sets. The family offers a large variety of reset trip
points, output types and package options to cover most
application requirements. Also, the breadth of the product line
enables Microchip supervisors to cross to virtually all competitors
supervisory reset products. The devices are functionally and pin-
out comparable to products from other analog suppliers.
Noisy environments, unreliable power or battery power in many
microcontroller applications may create a variety of system-level
problems that can be eliminated with power-on reset or brown-out
detect functions found on the supervisors. The power-on reset
devices are designed to hold the microcontroller in reset until the
supply voltage reaches a predetermined operating level and
stabilizes.
This supervisor family protects from brown-out conditions
occurring as a result of supply voltage drops below the safe
operating level. It eliminates a slowly decaying power supply which
causes the microcontroller to begin executing instructions without
enough voltage to sustain its SRAM, producing indeterminate
results, and helps prevent a runaway system or helps back up
critical data during power fluctuations.
Microchip offers supervisors in 3-pin SOT-23, TO-92, 4-pin SOT-
143, 8-pin PDIP and 8/16-pin SOIC packages in various pin
configurations. It is ideal for embedded control applications such
as hand-held instrumentation, telephone hand sets and other
battery powered operations.
Features:
•Multiple Trip voltage points range from 1.75V - 4.72V
•Industry standard pin-outs
– T0-92
– SOT-23
– SOT-143
– SOIC
– PDIP
•Industrial Temperature (-40°C to +85°C)
•2 parts include Watchdog Timers
Related Application Notes:
•AN595 Improving the Susceptibility of an Application to ESD
•AN598 Plastic Packaging and the Effects of Surface Mount
Soldering Techniques
•AN686 Understanding and Using Supervisory Circuits
Microcontroller Supervisor Family
Product Information
Microchip Technology Inc. •The Embedded Control Solutions Company®
Part Number Output Reset
MCP100 CMOS Push-Pull Active Low
MCP101 CMOS Push-Pull Active High
MCP120 Open Drain Active Low
MCP130 Open Drain with 5 KΩPull-Up Active Low
MCP809 Open Drain Active Low
MCP810 CMOS Push-Pull Active High
TC32M Open Drain Active Low
TC1232 Open Drain Active Low/High
TC1270 CMOS Push-Pull Active Low
TC1271 CMOS Push-Pull Active High
TC1272 CMOS Push-Pull Active Low
TC1273 Open Drain Active Low
TC1274 CMOS Push-Pull Active High
TC1275 CMOS Push-Pull Active Low
TC1276 Open Drain Active Low
TC1277 CMOS Push-Pull Active High
TC1278 Open Drain Active High
TC1279 Open Drain Active Low
TCM809 CMOS Push-Pull Active Low
TCM810 CMOS Push-Pull Active High
TCM811 CMOS Push-Pull Active Low
TCM812 CMOS Push-Pull Active High
Additional Information:
•
Microchip's web site: www.microchip.com
•
Microchip’s Technical Library CD-ROM, Order No. DS00161
•
Application Notes are available in:
– Embedded Control Handbook, Order No. DS00092
– Embedded Control Handbook, Volume 2, Math Library, Order No. DS00167
– Embedded Control Handbook Update 2000, Order No. DS00711
•
Microchip’s Quality Systems and Customer Interface System, Order No. DS00169
•
Third party software and hardware support:
– Emulators
– Programmers
– Gang Programmers
– Software Tools
– Development Boards and Accessories
– Design Consultants
– Third Party Guide, Order No. DS00104
Microcontroller Supervisor Family
VCC Reset Typical Watchdog
Product Range Voltages Reset Output TRPU IDD (µA) Packages Timer
MCP100 1.0V - 5.5V 2.62,2.92,3.075,4.375,4.47,4.72 Active Low CMOS Push-Pull 350 ms 32 T0-92, 3-pin SOT-23 No
MCP101 1.0V - 5.6V 2.62,2.92,3.075,4.375,4.47,4.72 Active High CMOS Push-Pull 350 ms 33 T0-92, 3-pin SOT-23 No
MCP120 1.0V - 5.7V 2.62,2.92,3.075,4.375,4.47,4.72 Active Low Open Drain 350 ms 34 T0-92, 3-pin SOT-23, 8SN No
MCP130 1.0V - 5.8V 2.62,2.92,3.075,4.375,4.47,4.72 Active Low Open Drain with 5 KΩPull-Up 350 ms 35 T0-92, 3-pin SOT-23, 8SN No
MCP809 1.0V - 5.9V 2.62,2.92,3.075,4.375,4.47,4.72 Active Low Open Drain 350 ms 36 3-pin SOT-23 No
MCP810 1.0V - 5.10V 2.62,2.92,3.075,4.375,4.47,4.72 Active High CMOS Push-Pull 350 ms 37 3-pin SOT-23 No
TC32M 4.5V - 5.5V 4.5 Active Low Open Drain 500 ms 50 T0-92, 3-pin SOT-23 Yes
TC1232 4.5V - 5.5V 4.37,4.62 Active Low/High Open Drain 250 ms 50 8-pin PDIP, SOIC, 16-pin SOIC Yes
TC1270 1.2V - 5.5V 4.63,4.38,3.08,2.93,2.63,1.75 Active Low CMOS Push-Pull 140 ms 7 4-pin SOT-143 No
TC1271 1.2V - 5.5V 4.63,4.38,3.08,2.93,2.63,1.75 Active High CMOS Push-Pull 140 ms 7 4-pin SOT-143 No
TC1272 1.2V - 5.5V 4.62,4.37,4.12 Active Low CMOS Push-Pull 100 ms 30 3-pin SOT-23B No
TC1273 1.2V - 5.5V 4.62,4.35,4.13 Active Low Open Drain 100 ms 30 3-pin SOT-23B No
TC1274 1.8V - 5.5V 4.62,4.35,4.13 Active High CMOS Push-Pull 100 ms 30 3-pin SOT-23B No
TC1275 1.2V - 5.5V 3.06,2.88,2.55 Active Low CMOS Push-Pull 100 ms 28 3-pin SOT-23B No
TC1276 1.2V - 5.5V 3.06,2.88,2.55 Active Low Open Drain 100 ms 28 3-pin SOT-23B No
TC1277 1.2V - 5.5V 3.06,2.88,2.55 Active High CMOS Push-Pull 100 ms 28 3-pin SOT-23B No
TC1278 1.8V - 5.5V 4.62,4.37,4.125 Active High Open Drain 250 ms 1500 3-pin SOT-23B No
TC1279 1.2V - 5.5V 4.62,4.37,4.12 Active Low Open Drain 250 ms 1500 3-pin SOT-23B No
TCM809 1.2V - 5.5V 4.63,4.38,4.00,3.08,2.93,2.63 Active Low CMOS Push-Pull 140 ms 17 3-pin SOT-23B No
TCM810 1.2V - 5.5V 4.63,4.38,4.00,3.08,2.93,2.63 Active High CMOS Push-Pull 140 ms 17 3-pin SOT-23B No
TCM811 1.2V - 5.5V 4.63,4.38,3.08,2.93,2.63,1.75 Active Low CMOS Push-Pull 140 ms 6 4-pin SOT-143 No
TCM812 1.2V - 5.5V 4.63,4.38,3.08,2.93,2.63,1.75 Active High CMOS Push-Pull 140 ms 6 4-pin SOT-143 No
Microcontroller Supervisor Family
Continued
Microchip Technology Inc.•2355 W. Chandler Blvd.•Chandler, AZ 85224-6199•(480) 792-7200•Fax (480) 792-9210
The Microchip name, logo, PIC, PICmicro, PICMASTER, PICSTART, PRO MATE, KEELOQ, SEEVAL, MPLAB and The Embedded Control Solutions Company are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other countries. Total Endurance, ICSP, In-Circuit Serial Programming, FilterLab, MXDEV, microID, FlexROM, fuzzyLAB, MPASM, MPLINK, MPLIB,
PICDEM, ICEPIC, Migratable Memory, FanSense, ECONOMONITOR, SelectMode and microPort are trademarks and SQTP is a service mark of Microchip Technology Inc.
All other trademarks mentioned herein are the property of their respective companies.
Information subject to change. © 2001, Microchip Technology Inc. All rights reserved. Printed in the U.S.A. DS21303C 4/01
*DS21303B*
