74157 datasheet(1/6 Pages) NSC

No de pièce	74157

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

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Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

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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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Description similaire - 74157

Fabricant	No de pièce	Fiches technique	Description
National Semiconductor ...	54LS157	160Kb / 8P	Quad 2-Line to 1-Line Data Selectors/Multiplexers
Fairchild Semiconductor	DM74LS157	79Kb / 7P	Quad 2-Line to 1-Line Data Selectors/Multiplexers
National Semiconductor ...	DM54S157	128Kb / 5P	QUAD 1 OF 2 LINE DATA SELECTORS/MULTIPLEXERS
Texas Instruments	SN74S257J	1Mb / 23P	QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
Unisonic Technologies	U74LVC157	204Kb / 6P	QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS / MULTIPLEXERS
Texas Instruments	SN54AHC157	1Mb / 27P	QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
	SN54AHCT158	633Kb / 15P	QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
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Unisonic Technologies	U74LVC157	192Kb / 6P	QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
Texas Instruments	SN54HCT157	342Kb / 13P	QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS

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74157 Fiches technique(PDF) 1 Page - National Semiconductor (TI)

74157 Fiches technique(HTML) 1 Page - National Semiconductor (TI)

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