DM54157J datasheet(1/6 Pages) NSC

Part #	DM54157J

Description	Quad 2-Line to 1-Line Data Selectors/Multiplexers

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Manufacturer	NSC [National Semiconductor (TI)]

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TLF6550

June 1989

54157DM54157DM74157

Quad 2-Line to 1-Line Data SelectorsMultiplexers

General Description

These data selectorsmultiplexers contain inverters and

drivers to supply full on-chip data selection to the four out-

put gates A separate strobe input is provided A 4-bit word

is selected from one of two sources and is routed to the four

outputs

Applications

Y

Expand any data input point

Y

Multiplex dual data buses

Y

Generate four functions of two variables (one variable

is common)

Y

Source programmable counters

Features

Y

Buffered inputs and outputs

Y

Typical propagation time 9 ns

Y

Typical power dissipation 150 mW

Y

Alternate MilitaryAerospace device (54157) is avail-

able Contact a National Semiconductor Sales Office

Distributor for specifications

Connection Diagram

Dual-In-Line Package

TLF6550 – 1

Order Number 54157DMQB 54157FMQB DM54157J DM54157W or DM74157N

See NS Package Number J16A N16E or W16A

Function Table

Inputs

Output Y

Strobe

Select

A

B

HX

X

L

LL

L

X

L

LL

H

X

H

LH

X

L

LH

X

H

H e High Level L e Low Level X e Don’t Care

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A

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DM54157J Datasheet(PDF) 1 Page - National Semiconductor (TI)

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