74F725A 查看數據表（PDF） - Philips Electronics

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产品描述 (功能)

生产厂家

74F725A

Quad 2-to-1 data selector multiplexer (3-State)

Philips Electronics 

Philips Semiconductors

Multiplexers

LOGIC DIAGRAM – 74F723A/74F723-1

OE 24

INV 23

S0 14

VCC = Pin 18, 19

GND = Pin 6, 7

S1 13

D0a 1

D0b 2

D0c 3

D1a 22

D1b 21

D1c 20

D2a 17

D2b 16

D2c 15

D3a 10

D3b 11

D3c 12

FUNCTION TABLE – 74F723A/74F723-1

INPUTS

S0 S1 INV OE Dna Dnb Dnc

L L L L Data a Data b Data c

L L H L Data a Data b Data c

H L L L Data a Data b Data c

H L H L Data a Data b Data c

X H L L Data a Data b Data c

X H H L Data a Data b Data c

XXXH

X

X

X

H = High voltage level

L = Low voltage level

X = Don’t care

Z = High impedance “off” state

OUTPUT

Qn

Data a

Data a

Data b

Data b

Data c

Data c

Z

Product specification

74F723A/74F723–1/

74F725A/74F725–1

4 Q0

5 Q1

8 Q2

9 Q3

SF01232

1990 Dec 13

4

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