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HD74LV138A Datasheet, PDF (2/13 Pages) Hitachi Semiconductor – 3-to-8 line Decoder / Demultiplexers
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HD74LV138A
Function Table
Enable Inputs
Select Inputs
G1 G2A G2B C
B
A
X
H
X
X
X
X
X
X
H
X
X
X
L
X
X
X
X
X
H
L
L
L
L
L
H
L
L
L
L
H
H
L
L
L
H
L
H
L
L
L
H
H
H
L
L
H
L
L
H
L
L
H
L
H
H
L
L
H
H
L
H
L
L
H
H
H
Note: H: High level
L: Low level
X: Immaterial
Outputs
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
Pin Arrangement
A1
B2
C3
G2A 4
G2B 5
G1 6
Y7 7
GND 8
16 VCC
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
9 Y6
(Top view)
2
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