MM74HC123AN Fairchild Semiconductor, MM74HC123AN Datasheet

MM74HC123AN

Manufacturer Part Number

MM74HC123AN

Description

IC MULTIVIBRATOR MONO DL 16-DIP

Manufacturer

Fairchild Semiconductor

Series

74HCr

Datasheet

1.MM74HC123AN.pdf (9 pages)

Specifications of MM74HC123AN

Logic Type

Monostable

Independent Circuits

Schmitt Trigger Input

Yes

Propagation Delay

22ns

Current - Output High, Low

5.2mA, 5.2mA

Voltage - Supply

2 V ~ 6 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Through Hole

Package / Case

16-DIP (0.300", 7.62mm)

Elements Per Chip

Logic Family

Input Bias Current (max)

0.008 mA

Propagation Delay Time

197 ns, 48 ns, 38 ns

High Level Output Current

- 5.2 mA

Low Level Output Current

5.2 mA

Supply Voltage (max)

6 V

Supply Voltage (min)

2 V

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Mounting Style

Through Hole

Operating Supply Voltage

2.5 V, 3.3 V, 5 V

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

74HC123
MM74HC123N

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

MM74HC123AN

Manufacturer:

NS/国半

Quantity:

20 000

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MM74HC123AM

MM74HC123ASJ

MM74HC123AMTC

MM74HC123AN

MM74HC123A

Dual Retriggerable Monostable Multivibrator

General Description

The MM74HC123A high speed monostable multivibrators

(one shots) utilize advanced silicon-gate CMOS technol-

ogy. They feature speeds comparable to low power Schot-

tky TTL circuitry while retaining the low power and high

noise immunity characteristic of CMOS circuits.

Each multivibrator features both a negative, A, and a posi-

tive, B, transition triggered input, either of which can be

used as an inhibit input. Also included is a clear input that

when taken low resets the one shot. The MM74HC123A

can be triggered on the positive transition of the clear while

A is held LOW and B is held HIGH.

The MM74HC123A is retriggerable. That is it may be trig-

gered repeatedly while their outputs are generating 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 out-

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Order Number

Pin Assignment for DIP, SOIC, SOP and TSSOP

Package Number

Top View

MTC16

M16A

M16D

N16E

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

DS005206.prf

put pulse equation is simply: PW

PW is in seconds, R is in ohms, and C is in farads. All

inputs are protected from damage due to static discharge

by diodes to V

Features

Note: Pin 6 and Pin 14 must be hard-wired to GND.

Typical propagation delay: 25 ns

Wide power supply range: 2V–6V

Low quiescent current: 80 A maximum (74HC Series)

Low input current: 1 A maximum

Fanout of 10 LS-TTL loads

Simple pulse width formula T

Wide pulse range: 400 ns to

Part to part variation: 5% (typ)

Schmitt Trigger A & B inputs enable infinite signal input

rise and fall times.

Package Description

and ground.

Timing Component

September 1983

Revised February 1999

(typ)

EXT

www.fairchildsemi.com

) (C

EXT

); where

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MM74HC123AN Summary of contents

Page 1

... MM74HC123AMTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide MM74HC123AN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. ...

Page 2

Truth Table Inputs Clear HIGH Level L LOW Level Transition from LOW-to-HIGH Transition from HIGH-to-LOW One HIGH Level Pulse One LOW Level Pulse X Irrelevant Logic Diagram www.fairchildsemi.com Outputs ...

Page 3

Absolute Maximum Ratings (Note 2) Supply Voltage ( Input Voltage ( Output Voltage ( OUT Clamp Diode Current ( Output Current, ...

Page 4

AC Electrical Characteristics Symbol Parameter t Maximum Trigger Propagation Delay PLH Clear Maximum Trigger Propagation Delay PHL ...

Page 5

Theory of Operation 1POSITIVE EDGE TRIGGER 2NEGATIVE EDGE TRIGGER 3POSITIVE EDGE TRIGGER 4POSITIVE EDGE RE-TRIGGER (PULSE LENGTHENING) 5RESET PULSE SHORTENING 6CLEAR TRIGGER TRIGGER OPERATION As shown in Figure 1 and the logic diagram, before an input trigger occurs, the one ...

Page 6

RESET OPERATION These one shots may be reset during the generation of the output pulse. In the reset mode of operation, an input pulse on clear sets the reset latch and causes the capacitor to be fast charged to V ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M16A Package Number M16D 7 www.fairchildsemi.com ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide www.fairchildsemi.com Package Number MTC16 8 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN ...

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