JVC RM-RE9000 Service Manual page 8

RM-RE9000
TC74VHC08F-X (IC112) :Data line buffer
1. Pin. layout
1A 1
1B 2
1Y 3
4
2A
2B 5
6
2Y
GND
7
(TOP VIEW)
1-8
14 Vcc
13 4B
4A
12
4Y
11
3B
10
3A
9
3Y
8
2. True table
A B Y
L
L L
L L
H
L
H L
H H H
X : Don't Care