2000 Mar 15

4

Philips Semiconductors

Product specification

Dual retriggerable monostable multivibrator

with reset

74AHC123A;

74AHCT123A

FUNCTION TABLE

See note 1.

Notes

1

H = HIGH voltage level;

L = LOW voltage level;

X = don’t care;

↑ = LOW-to-HIGH CP transition;

↓ = HIGH-to-LOW CP transition.

2

If the monostable multivibrator was triggered before this condition was established, the pulse will be continued as

programmed.

3

One HIGH-level output pulse.

4

One LOW-level output pulse.

ORDERING INFORMATION

INPUTS

OUTPUTS

nAnB

nQ

nQ

LX

X

L

H

XHX

XX

L

HL

↑

(3)

(4)

H

↓

H

(3)

(4)

↑

LH

(3)

(4)

TYPE NUMBER

PACKAGES

TEMPERATURE

RANGE

PINS

PACKAGE

MATERIAL

CODE

74AHC123AD

−40 to +125 °C

16

SO

plastic

SOT109-1

74AHC123APW

16

TSSOP

plastic

SOT403-1

74AHCT123AD

16

SO

plastic

SOT109-1

74AHCT123APW

16

TSSOP

plastic

SOT403-1