74HC238 Datasheet, PDF (4/18 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer

NXP Semiconductors
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
5.2 Pin description
Table 2.
Symbol
A[0:2]
E1
E2
E3
Y[0:7]
GND
V_CC
Pin description
Pin
1, 2, 3
4
5
6
15, 14, 13, 12, 11, 10, 9, 7
8
16
6. Functional description
Description
address input
enable input (active LOW)
enable input (active LOW)
enable input (active HIGH)
output (active HIGH)
ground (0 V)
supply voltage
Table 3. Function table^[1]
Inputs
Outputs
E1
E2
E3
A0
A1
A2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
H
X
X
X
X
X
L
L
L
L
L
L
L
L
X
H
X
X
X
X
L
L
L
L
L
L
L
L
X
X
L
X
X
X
L
L
L
L
L
L
L
L
L
L
H
L
L
L
H
L
L
L
L
L
L
L
L
L
H
H
L
L
L
H
L
L
L
L
L
L
L
L
H
L
H
L
L
L
H
L
L
L
L
L
L
L
H
H
H
L
L
L
L
H
L
L
L
L
L
L
H
L
L
H
L
L
L
L
H
L
L
L
L
L
H
H
L
H
L
L
L
L
L
H
L
L
L
L
H
L
H
H
L
L
L
L
L
L
H
L
L
L
H
H
H
H
L
L
L
L
L
L
L
H
[1] H = HIGH voltage level;
L = LOW voltage level;
X = don’t care.
74HC_HCT238_3
Product data sheet
Rev. 03 — 16 July 2007
© NXP B.V. 2007. All rights reserved.
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