74HCT4352D 查看數據表（PDF） - Philips Electronics

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74HCT4352D

Dual 4-channel analog multiplexer/demultiplexer with latch

Philips Electronics 

Philips Semiconductors

Dual 4-channel analog

multiplexer/demultiplexer with latch

FUNCTION TABLE

INPUTS

E1

E2 LE S1 S0

CHANNEL ON

H

X

X

X X none

X

L

X X X none

L

H

H

L

L

nY0 − nZ

L

H

H

L

H nY1 − nZ

L

H

H

H

L

nY2 − nZ

L

H

H

H

H

nY3 − nZ

L

HL

X

X

(1)

X

X

↓

X

X

(2)

Notes

1. Last selected channel “ON”.

2. Selected channels latched.

H = HIGH voltage level

L = LOW voltage level

X = don’t care

↓ = HIGH-to-LOW LE transition

APPLICATIONS

• Analog multiplexing and demultiplexing

• Digital multiplexing and demultiplexing

• Signal gating

Product specification

74HC/HCT4352

Fig.4 Functional diagram.

December 1990

Fig.5 Schematic diagram (one switch).

4

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