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74HC155
Dual 2-to-4 Line Decoder/Demultiplexer
Datasheet (PDF)
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74HC155
DIP-16
1
1E
2
~2E
3
A1
4
~1Y3
5
~1Y2
6
~1Y1
7
~1Y0
8
GND
16
VCC
15
2E
14
~1E
13
A0
12
~2Y3
11
~2Y2
10
~2Y1
9
~2Y0
vcc
gnd
in
out
io
Pin Reference
⌄
#
Label
Type
1
1E
in
2
~2E
in
3
A1
in
4
~1Y3
out
5
~1Y2
out
6
~1Y1
out
7
~1Y0
out
8
GND
gnd
9
~2Y0
out
10
~2Y1
out
11
~2Y2
out
12
~2Y3
out
13
A0
in
14
~1E
in
15
2E
in
16
VCC
vcc