CD4047BM - National Semiconductor

TL/F/5969

CD4047BM/CD4047BC Low Power Monostable/Astable Multivibrator

October 1993

CD4047BM/CD4047BC Low Power

Monostable/Astable Multivibrator

General Description

CD4047B is capable of operating in either the monostable

or astable mode. It requires an external capacitor (between

pins 1 and 3) and an external resistor (between pins 2 and

3) to determine the output pulse width in the monostable

mode, and the output frequency in the astable mode.

Astable operation is enabled by a high level on the astable

input or low level on the astable input. The output frequency

(at 50% duty cycle) at Q and Q outputs is determined by the

timing components. A frequency twice that of Q is available

at the Oscillator Output; a 50% duty cycle is not guaranteed.

Monostable operation is obtained when the device is trig-

gered by low-to-high transition at atrigger input or high-to-

low transition at btrigger input. The device can be retrig-

gered by applying a simultaneous low-to-high transition to

both the atrigger and retrigger inputs.

A high level on Reset input resets the outputs Q to low, Q to

high.

Features

YWide supply voltage range 3.0V to 15V

YHigh noise immunity 0.45 VDD (typ.)

YLow power TTL Fan out of 2 driving 74L

compatibility or 1 driving 74LS

SPECIAL FEATURES

YLow power consumption: special CMOS oscillator con-

figuration

YMonostable (one-shot) or astable (free-running) opera-

tion

YTrue and complemented buffered outputs

YOnly one external R and C required

MONOSTABLE MULTIVIBRATOR FEATURES

YPositive- or negative-edge trigger

YOutput pulse width independent of trigger pulse dura-

tion

YRetriggerable option for pulse width expansion

YLong pulse widths possible using small RC components

by means of external counter provision

YFast recovery time essentially independent of pulse

width

YPulse-width accuracy maintained at duty cycles ap-

proaching 100%

ASTABLE MULTIVIBRATOR FEATURES

YFree-running or gatable operating modes

Y50% duty cycle

YOscillator output available

YGood astable frequency stability

typical eg2% a0.03%/§C@100 kHz

frequency eg0.5% a0.015%/§C@10 kHz

deviation (circuits trimmed to frequency

VDD e10V g10%)

Applications

YFrequency discriminators

YTiming circuits

YTime-delay applications

YEnvelope detection

YFrequency multiplication

YFrequency division

Block and Connection Diagrams

TL/F/5969–1

Dual-In-Line Package

TL/F/5969–2

Top View

Order Number CD4047B

C1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

Absolute Maximum Ratings (Notes 1 and 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales

Office/Distributors for availability and specifications.

DC Supply Voltage (VDD)b0.5V to a18VDC

Input Voltage (VIN)b0.5V to VDD a0.5VDC

Storage Temperature Range (TS)b65§Ctoa

150§C

Power Dissipation (PD)

Dual-In-Line 700 mW

Small Outline 500 mW

Lead Temperature (TL)

(Soldering, 10 seconds) 260§C

Recommended Operating

Conditions (Note 2)

DC Supply Voltage (VDD) 3Vto15V

Input Voltage (VIN) 0 to VDD VDC

Operating Temperature Range (TA)

CD4047BM b55§Ctoa

125§C

CD4047BC b40§Ctoa

85§C

DC Electrical Characteristics CD4047BM (Note 2)

Symbol Parameter Conditions b55§C25

C 125§CUnits

Min Max Min Typ Max Min Max

IDD Quiescent Device Current VDD e5V 5 5 150 mA

VDD e10V 10 10 300 mA

VDD e15V 20 20 600 mA

VOL Low Level Output Voltage

k1mA

VDD e5V 0.05 0 0.05 0.05 V

VDD e10V 0.05 0 0.05 0.05 V

VDD e15V 0.05 0 0.05 0.05 V

VOH High Level Output Voltage

k1mA

VDD e5V 4.95 4.95 5 4.95 V

VDD e10V 9.95 9.95 10 9.95 V

VDD e15V 14.95 14.95 15 14.95 V

VIL Low Level Input Voltage VDD e5V, VOe0.5V or 4.5V 1.5 2.25 1.5 1.5 V

VDD e10V, VOe1V or 9V 3.0 4.5 3.0 3.0 V

VDD e15V, VOe1.5V or 13.5V 4.0 6.75 4.0 4.0 V

VIH High Level Input Voltage VDD e5V, VOe0.5V or 4.5V 3.5 3.5 2.75 3.5 V

VDD e10V, VOe1V or 9V 7.0 7.0 5.5 7.0 V

VDD e15V, VOe1.5V or 13.5V 11.0 11.0 8.25 11.0 V

IOL Low Level Output Current VDD e5V, VOe0.4V 0.64 0.51 0.88 0.36 mA

(Note 3) VDD e10V, VOe0.5V 1.6 1.3 2.25 0.9 mA

VDD e15V, VOe1.5V 4.2 3.4 8.8 2.4 mA

IOH High Level Output Current VDD e5V, VOe4.6V b0.64 b0.51 b0.88 b0.36 mA

(Note 3) VDD e10V, VOe9.5V b1.6 b1.3 b2.25 b0.9 mA

VDD e15V, VOe13.5V b4.2 b3.4 b8.8 b2.4 mA

IIN Input Current VDD e15V, VIN e0V b0.1 b10b5b0.1 b1.0 mA

VDD e15V, VIN e15V 0.1 10b50.1 1.0 mA

DC Electrical Characteristics CD4047BC (Note 2)

Symbol Parameter Conditions b40§C25

C85

Units

Min Max Min Typ Max Min Max

IDD Quiescent Device Current VDD e5V 20 20 150 mA

VDD e10V 40 40 300 mA

VDD e15V 80 80 600 mA

VOL Low Level Output Voltage

k1mA

VDD e5V 0.05 0 0.05 0.05 V

VDD e10V 0.05 0 0.05 0.05 V

VDD e15V 0.05 0 0.05 0.05 V

VOH High Level Output Voltage

k1mA

VDD e5V 4.95 4.95 5 4.95 V

VDD e10V 9.95 9.95 10 9.95 V

VDD e15V 14.95 14.95 15 14.95 V

DC Electrical Characteristics CD4047BC (Note 2) (Continued)

Symbol Parameter Conditions b40§C25

C85

Units

Min Max Min Typ Max Min Max

VIL Low Level Input Voltage VDD e5V, VOe0.5V or 4.5V 1.5 2.25 1.5 1.5 V

VDD e10V, VOe1V or 9V 3.0 4.5 3.0 3.0 V

VDD e15V, VOe1.5V or 13.5V 4.0 6.75 4.0 4.0 V

VIH High Level Input Voltage VDD e5V, VOe0.5V or 4.5V 3.5 3.5 2.75 3.5 V

VDD e10V, VOe1V or 9V 7.0 7.0 5.5 7.0 V

VDD e15V, VOe1.5V or 13.5V 11.0 11.0 8.25 11.0 V

IOL Low Level Output Current VDD e5V, VOe0.4V 0.52 0.44 0.88 0.36 mA

(Note 3) VDD e10V, VOe0.5V 1.3 1.1 2.25 0.9 mA

VDD e15V, VOe1.5V 3.6 3.0 8.8 2.4 mA

IOH High Level Output Current VDD e5V, VOe4.6V b0.52 b0.44 b0.88 b0.36 mA

(Note 3) VDD e10V, VOe9.5V b1.3 b1.1 b2.25 b0.9 mA

VDD e15V, VOe13.5V b3.6 b3.0 b8.8 b2.4 mA

IIN Input Current VDD e15V, VIN e0V b0.3 b10b5b0.3 b1.0 mA

VDD e15V, VIN e15V 0.3 10b50.3 1.0 mA

Note 1: ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices

should be operated at these limits. The table of ‘‘Recommended Operating Conditions’’ and ‘‘Electrical Characteristics’’ provides conditions for actual device

oepration.

Note 2: VSS e0V unless otherwise specified.

Note 3: IOH and IOL are tested one output at a time.

AC Electrical Characteristics*CD4047B

TAe25§C, CLe50 pF, RLe200k, input tretfe20 ns, unless otherwise specified.

Symbol Parameter Conditions Min Typ Max Units

tPHL,t

PLH Propagation Delay Time Astable, VDD e5V 200 400 ns

Astable to Osc Out VDD e10V 100 200 ns

VDD e15V 80 160 ns

tPHL,t

PLH Astable, Astable to Q, Q VDD e5V 550 900 ns

VDD e10V 250 500 ns

VDD e15V 200 400 ns

tPHL,t

PLH aTrigger, bTrigger to Q VDD e5V 700 1200 ns

VDD e10V 300 600 ns

VDD e15V 240 480 ns

tPHL,t

PLH aTrigger, Retrigger to Q VDD e5V 300 600 ns

VDD e10V 175 300 ns

VDD e15V 150 250 ns

tPHL,t

PLH Reset to Q, Q VDD e5V 300 600 ns

VDD e10V 125 250 ns

VDD e15V 100 200 ns

tTHL,t

TLH Transition Time Q, Q, Osc Out VDD e5V 100 200 ns

VDD e10V 50 100 ns

VDD e15V 40 80 ns

tWL,t

WH Minimum Input Pulse Duration Any Input

VDD e5V 500 1000 ns

VDD e10V 200 400 ns

VDD e15V 160 320 ns

tRCL,t

FCL aTrigger, Retrigger, Rise and VDD e5V 15 ms

Fall Time VDD e10V 5 ms

VDD e15V 5 ms

CIN Average Input Capacitance Any Input 5 7.5 pF

*AC Parameters are guaranteed by DC correlated testing.

Logic Diagram

TL/F/5969–3

*Special input protection circuit to permit larger input-voltage swings.

Truth Table

Terminal Connections Output Pulse Typical Output

Function

To VDD To VSS

Input Pulse From Period or

To Pulse Width

Astable Multivibrator

Free-Running 4, 5, 6, 14 7, 8, 9, 12 10, 11, 13 tA(10, 11) e4.40 RC

True Gating 4, 6, 14 7, 8, 9, 12 5 10, 11, 13 tA(13) e2.20 RC

Complement Gating 6, 14 5, 7, 8, 9, 12 4 10, 11, 13

Monostable Multivibrator

Positive-Edge Trigger 4, 14 5, 6, 7, 9, 12 8 10, 11

Negative-Edge Trigger 4, 8, 14 5, 7, 9, 12 6 10, 11 tM(10, 11) e2.48 RC

Retriggerable 4, 14 5, 6, 7, 9 8, 12 10, 11

External Countdown*14 5, 6, 7, 8, 9, 12 (See Figure) (See Figure) (See Figure)

Note: External resistor between terminals 2 and 3. External capacitor between terminals 1 and 3.

*Typical Implementation of External Countdown Option

TL/F/5969–4

tEXT e(N b1) tAa(tMatA/2)

Typical Performance Characteristics

Typical Q, Q, Osc Out Period

Accuracy vs Supply Voltage

(Astable Mode Operation)

TL/F/5969–5

fQ,Q RC

A1000 kHz 22k 10 pF

B100 kHz 22k 100 pF

C10 kHz 220k 100 pF

D1 kHz 220k 1000 pF

E100 Hz 2.2M 1000 pF

Typical Q, Q, Pulse Width

Accuracy vs Supply Voltage

Monostable Mode Operation

TL/F/5969–6

tMRC

A2ms 22k 10 pF

B7ms 22k 100 pF

C60 ms 220k 100 pF

D550 ms 220k 1000 pF

E5.5 ms 2.2M 1000 pF

Typical Q, Q and Osc Out

Period Accuracy vs Temperature

Astable Mode Operation

TL/F/5969–7

fQ,Q RC

A1000 kHz 22k 10 pF

B100 kHz 22k 100 pF

C10 kHz 220k 100 pF

D1 kHz 220k 1000 pF

Typical Q and Q Pulse Width

Accuracy vs Temperature

Monostable Mode Operation

TL/F/5969–8

tMRC

A2ms 22k 10 pF

B7ms 22k 100 pF

C60 ms 220k 100 pF

D550 ms 220k 1000 pF

Timing Diagram

Astable Mode

TL/F/5969–9

Monostable Mode

TL/F/5969–10

Retrigger Mode

TL/F/5969–11

CD4047BM/CD4047BC Low Power Monostable/Astable Multivibrator

Physical Dimensions inches (millimeters)

Order Number CD4047BMJ or CD4047BCJ

NS Package Number J14A

Order Number CD4047BMN or CD4047BCN

NS Package Number N14A

LIFE SUPPORT POLICY

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT

DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL

SEMICONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or 2. A critical component is any component of a life

systems which, (a) are intended for surgical implant support device or system whose failure to perform can

into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life

failure to perform, when properly used in accordance support device or system, or to affect its safety or

with instructions for use provided in the labeling, can effectiveness.

be reasonably expected to result in a significant injury

to the user.

National Semiconductor National Semiconductor National Semiconductor National Semiconductor

Corporation Europe Hong Kong Ltd. Japan Ltd.

1111 West Bardin Road Fax: (

49) 0-180-530 85 86 13th Floor, Straight Block, Tel: 81-043-299-2309

Arlington, TX 76017 Email: cnjwge

tevm2.nsc.com Ocean Centre, 5 Canton Rd. Fax: 81-043-299-2408

Tel: 1(800) 272-9959 Deutsch Tel: (

49) 0-180-530 85 85 Tsimshatsui, Kowloon

Fax: 1(800) 737-7018 English Tel: (

49) 0-180-532 78 32 Hong Kong

Fran3ais Tel: (

49) 0-180-532 93 58 Tel: (852) 2737-1600

Italiano Tel: (

49) 0-180-534 16 80 Fax: (852) 2736-9960

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.