TLF6392

June 1989

54LS151DM54LS151DM74LS151

Data SelectorMultiplexer

General Description

This data selectormultiplexer contains full on-chip decod-

ing to select the desired data source The ’LS151 selects

one-of-eight data sources The ’LS151 has a strobe input

which must be at a low logic level to enable these devices

A high level at the strobe forces the W output high and the

Y output low

The ’LS151 features complementary W and Y outputs

Features

Y

Select one-of-eight data lines

Y

Performs parallel-to-serial conversion

Y

Permits multiplexing from N lines to one line

Y

Also for use as Boolean function generator

Y

Typical average propagation delay time data input to W

output 125 ns

Y

Typical power dissipation 30 mW

Y

Alternate MilitaryAerospace device (54LS151) is avail-

able Contact a National Semiconductor Sales Office

Distributor for specifications

Connection Diagram

Dual-In-Line Package

TLF6392 – 1

Order Number 54LS151DMQB 54LS151FMQB 54LS151LMQB

DM54LS151J DM54LS151W DM74LS151M or DM74LS151N

See NS Package Number E20A J16A M16A N16E or W16A

Truth Table

Inputs

Outputs

Select

Strobe

YW

CBA

S

XXX

H

L

H

L

L

L

L

D0

D0

L

L

H

L

D1

D1

L

H

L

L

D2

D2

L

H

H

L

D3

D3

H

L

L

L

D4

D4

H

L

H

L

D5

D5

H

H

L

L

D6

D6

H

H

H

L

D7

D7

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A