TLF9785

June 1989

54279DM74279 Quad Set-Reset Latch

General Description

This device contains four independent set-reset type flip-

flops with one Q output each

Connection Diagram

Dual-In-Line Package

TLF9785 – 1

Order Number 54279DMQB 54279FMQB or DM74279N

NS Package Number J16A N16E or W16A

Pin Names

Description

Reset Inputs (Active Low)

Set Inputs (Active Low)

Q

Outputs

Truth Table

Inputs

Output

S1S2R

Q

LL

L

h

LX

H

H

XL

H

H

HH

L

L

H

H

H

No Change

simultaneously the output state is indeterminate otherwise it follows the

Truth Table

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A