74HC238 Philips, 74HC238 Datasheet - Page 4

• Manufacturer Part Number: 74HC238
• Description: 3-to-8 line decoder/demultiplexer
• Manufacturer: Philips

Philips Semiconductors
FUNCTION TABLE
Note
1. H = HIGH voltage level
December 1990
H
X
X
L
L
L
L
L
L
L
L
3-to-8 line decoder/demultiplexer
E
L = LOW voltage level
X = don’t care
1
X
H
X
L
L
L
L
L
L
L
L
E
2
Fig.4 Functional diagram.
X
X
L
H
H
H
H
H
H
H
H
E
INPUTS
3
X
X
X
L
H
L
H
L
H
L
H
A
0
X
X
X
L
L
H
H
L
L
H
H
A
1
X
X
X
L
L
L
L
H
H
H
H
A
2
L
L
L
H
L
L
L
L
L
L
L
Y
0
4
L
L
L
L
H
L
L
L
L
L
L
Y
1
L
L
L
L
L
H
L
L
L
L
L
Y
2
L
L
L
L
L
L
H
L
L
L
L
Fig.5 Logic diagram.
OUTPUTS
Y
3
L
L
L
L
L
L
L
H
L
L
L
Y
4
74HC/HCT238
L
L
L
L
L
L
L
L
H
L
L
Y
Product specification
5
L
L
L
L
L
L
L
L
L
H
L
Y
6
L
L
L
L
L
L
L
H
L
L
L
Y
7