HEC4556BTD データシートの表示（PDF） - Philips Electronics

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HEC4556BTD

Dual 1-of-4 decoder/demultiplexer

Philips Electronics 

Philips Semiconductors

Dual 1-of-4 decoder/demultiplexer

Product specification

HEF4556B

MSI

Fig.3 Logic diagram (one decoder/multiplexer).

TRUTH TABLE

INPUTS

OUTPUTS

E A0

A1

O0

O1

O2

O3

LL

L

L

H

H

H

LH

L

H

L

H

H

LL

H

H

H

L

H

LH

H

H

H

H

L

HX

X

H

H

H

H

Notes

1. H = HIGH state (the more positive voltage)

2. L = LOW state (the less positive voltage)

3. X = state is immaterial

January 1995

3

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