CD4538

更新时间： 2024-11-03 22:54:23

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
10页	239K
描述
Dual Precision Monostable

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数据手册

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CD4538 数据手册

February 1988

CD4538BM/CD4538BC Dual Precision Monostable

General Description

Features

Wide supply voltage range

3.0V to 15V

0.45 V (typ.)

The CD4538B is a dual, precision monostable multivibrator

with independent trigger and reset controls. The device is

retriggerable and resettable, and the control inputs are inter-

nally latched. Two trigger inputs are provided to allow either

rising or falling edge triggering. The reset inputs are active

low and prevent triggering while active. Precise control of

output pulse-width has been achieved using linear CMOS

techniques. The pulse duration and accuracy are deter-

High noise immunity

Low power

TTL compatibility

Fan out of 2 driving 74L

or 1 driving 74LS

New formula: PW

(PW in seconds, R in Ohms, C in Farads)

OUT

Wide pulse-width range

1.0% pulse-width variation from part to part (typ.)

1 ms to

mined by external components R and C . The device does

Separate latched reset inputs

Symmetrical output sink and source capability

Low standby current

not allow the timing capacitor to discharge through the tim-

ing pin on power-down condition. For this reason, no exter-

nal protection resistor is required in series with the timing

pin. Input protection from static discharge is provided on all

pins.

5 nA (typ.)

5 V

Pin compatible to CD4528B

Block and Connection Diagrams

Dual-In-Line Package

CD4538BM

CD4538BC

TL/F/6000–2

Top View

Order Number CD4538B

TL/F/6000–1

and C are External Components

Pin 16

Pin 8

Truth Table

High Level

Inputs

Outputs

Low Level

Transition from Low to High

Transition from High to Low

One High Level Pulse

One Low Level Pulse

Irrelevant

Clear

1995 National Semiconductor Corporation

TL/F/6000

RRD-B30M105/Printed in U. S. A.

12 3 4 5 6 7...10

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CD4538BCJ	NSC	获取价格	IC 4000/14000/40000 SERIES, DUAL MONOSTABLE MULTIVIBRATOR, CDIP16, CERAMIC, DIP-16, Presca
CD4538BCJ	TI	获取价格	4000/14000/40000 SERIES, DUAL MONOSTABLE MULTIVIBRATOR, CDIP16, CERAMIC, DIP-16
CD4538BCJ/A+	ETC	获取价格	Monostable Multivibrator
CD4538BCM	FAIRCHILD	获取价格	Dual Precision Monostable
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