74LVX157MTC datasheet(2/7 Pages) FAIRCHILD

Nome de Peças	74LVX157MTC

Descrição Electrónicos	Low Voltage Quad 2-Input Multiplexer

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Fabricante Electrônico	FAIRCHILD [Fairchild Semiconductor]

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Truth Table

H

= HIGH Voltage Level

L

= LOW Voltage Level

X

= Immaterial

Functional Description

The LVX157 is a quad 2-input multiplexer. It selects four

bits of data from two sources under the control of a com-

mon Select input (S). The Enable input (E) is active-LOW.

When E is HIGH, all of the outputs (Z) are forced LOW

regardless of all other inputs. The LVX157 is the logic

implementation of a 4-pole, 2-position switch where the

position of the switch is determined by the logic levels sup-

plied to the Select input. The logic equations for the outputs

are shown below:

Za = E • (I1a • S + I0a • S)

Zb = E • (I1b • S + I0b • S)

Zc = E • (I1c • S + I0c • S)

Zd = E • (I1d • S + I0d • S)

A common use of the LVX157 is the moving of data from

two groups of registers to four common output busses. The

particular register from which the data comes is determined

by the state of the Select input. A less obvious use is as a

function generator. The LVX157 can generate any four of

the sixteen different functions of two variables with one

variable common. This is useful for implementing gating

functions.

Logic Diagram

Inputs

Outputs

E

SI0

I1

Z

HX

X

L

LH

X

L

LH

X

H

LL

L

X

L

LL

H

X

H

Nº de peça semelhante - 74LVX157MTC

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
STMicroelectronics	74LVX157MTR	197Kb / 9P	LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTS
STMicroelectronics	74LVX157MTR	269Kb / 12P	LOW VOLTAGE QUAD 2 CHANNEL MULTIPLEXER WITH 5V TOLERANT INPUTS

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Descrição semelhante - 74LVX157MTC

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Fairchild Semiconductor	74LCX257MTCX	103Kb / 9P	Low Voltage Quad 2-Input Multiplexer Low Voltage Quad 2-Input Multiplexer
ON Semiconductor	74LCX257	207Kb / 11P	Low Voltage Quad 2-Input Multiplexer Revised September 2000
Fairchild Semiconductor	74LVQ157	79Kb / 6P	Low Voltage Quad 2-Input Multiplexer
Fairchild Semiconductor	74LVQ157	66Kb / 6P	Low Voltage Quad 2-Input Multiplexer
ON Semiconductor	74LCX157	342Kb / 12P	Low Voltage Quad 2-Input Multiplexer April 2015 Rev. 1.3
Motorola, Inc	MC74LCX157	145Kb / 8P	LOW-VOLTAGE CMOS QUAD 2-INPUT MULTIPLEXER
Motorola, Inc	MC74LCX158	115Kb / 4P	LOW-VOLTAGE CMOS QUAD 2-INPUT MULTIPLEXER
ON Semiconductor	MC74LCX158	159Kb / 8P	Low-Voltage CMOS Quad 2-Input Multiplexer October, 2012 ??Rev. 7
	MC74LCX157	145Kb / 8P	LOW-VOLTAGE CMOS QUAD 2-INPUT MULTIPLEXER 1997 REV 1
	MC74LCX257	155Kb / 8P	LOW-VOLTAGE CMOS QUAD 2-INPUT MULTIPLEXER 1996 REV 0.2

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