Datasheet > M74HC4538

M74HC4538

更新时间： 2024-11-26 22:57:55

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		振荡器
页数	文件大小	规格书
14页	290K
描述
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR

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中文翻译

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数据手册

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M74HC4538 数据手册

M54HC4538

M74HC4538

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR

HIGH SPEED

t_PD= 25 ns (TYP.) AT V_CC= 5 V

LOW POWER DISSIPATION

STANDBY STATEI_CC=4µA(MAX.)ATT_A=25°C

ACTIVE STATE I_CC=200 µA (TYP.) AT V_CC= 5 V

HIGH NOISE IMMUNITY

_NIH= V_NIL= 28 % V_CC(MIN.)

B1R

F1R

OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

BALANCED PROPAGATION DELAYS

t_PLH= t_PHL

WIDE OUTPUT PULSE WIDTH RANGE

t_WOUT= 120 ns ~ 60 s OVER AT V_CC= 4.5 V

OUTPUT PULSE WIDTH INDEPENDENT

FROM TRIGGER INPUT PULSE WIDTH

PIN AND FUNCTION COMPATIBLE

WITH 4538B

(Plastic Package)

(Ceramic Package)

M1R

C1R

(Micro Package)

(Chip Carrier)

ORDER CODES :

M54HC4538F1R

M74HC4538M1R

M74HC4538B1R

M74HC4538C1R

PIN CONNECTIONS (top view)

DESCRIPTION

The M54/74HC4538 is a high speed CMOS DUAL

MONOSTABLEMULTIVIBRATOR fabricated insili-

con gate C²MOS technology. It has the same high

speed performance of LSTTL combined with true

CMOS low power consumption. Each multivibrator

features both a negative, A, and a positive, B, edge

triggered input, either of which can be used as an in-

hibit input. Also included is a clear input that when

taken low resets the one shot. The monostable

multivibrators are retriggerable. That is,they may be

triggered reapeatedly while their outputs are gener-

ating a pulse and the pulse will be extended. Pulse

width stability over a wide range of temperature and

supply is achieved using linear CMOS techniques.

The output pulse equation is simply

PW = 0.7 (R)(C) where PW is in seconds, R in

Ohms, and C is in Farads.

NC =

All inputs are equipped with protection circuits

against static discharge and transient excess volt-

age.

No Internal

Connection

October 1993

1/14

12 3 4 5 6 7...14

中文翻译

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