74HCT123 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

74HCT123

Dual retriggerable monostable multivibrator with reset

Philips Electronics 

Philips Semiconductors

Dual retriggerable monostable

multivibrator with reset

Product specification

74HC/HCT123

ORDERING INFORMATION

TYPE

NUMBER

74HC123N;

74HCT123N

74HC123D;

74HCT123D

74HC123DB;

74HCT123DB

74HC123PW;

74HCT123PW

NAME

DIP16

PACKAGE

DESCRIPTION

plastic dual in-line package; 16 leads (300 mil); long body

SO16 plastic small outline package; 16 leads; body width 3.9 mm

SSOP16 plastic shrink small outline package; 16 leads; body width 5.3 mm

TSSOP16 plastic thin shrink small outline package; 16 leads; body width 4.4 mm

VERSION

SOT38-1

SOT109-1

SOT338-1

SOT403-1

PIN DESCRIPTION

PIN NO.

1, 9

2, 10

3, 11

4, 12

7

8

13, 5

14, 6

15

16

SYMBOL

1A, 2A

1B, 2B

1RD, 2RD

1Q, 2Q

2REXT/CEXT

GND

1Q, 2Q

1CEXT, 2CEXT

1REXT/CEXT

VCC

NAME AND FUNCTION

trigger inputs (negative-edge triggered)

trigger inputs (positive-edge triggered)

direct reset LOW and trigger action at positive edge

outputs (active LOW)

external resistor/capacitor connection

ground (0 V)

outputs (active HIGH)

external capacitor connection

external resistor/capacitor connection

positive supply voltage

Fig.1 Pin configuration.

1998 Jul 08

Fig.2 Logic symbol.

3

Fig.3 IEC logic symbol.

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