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74HC139
Dual 2-to-4 Line Decoder/Demultiplexer
Datasheet (PDF)
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74HC139
DIP-16
1
~1E
2
1A0
3
1A1
4
~1Y0
5
~1Y1
6
~1Y2
7
~1Y3
8
GND
16
VCC
15
~2E
14
2A0
13
2A1
12
~2Y0
11
~2Y1
10
~2Y2
9
~2Y3
vcc
gnd
in
out
io
Pin Reference
⌄
#
Label
Type
1
~1E
in
2
1A0
in
3
1A1
in
4
~1Y0
out
5
~1Y1
out
6
~1Y2
out
7
~1Y3
out
8
GND
gnd
9
~2Y3
out
10
~2Y2
out
11
~2Y1
out
12
~2Y0
out
13
2A1
in
14
2A0
in
15
~2E
in
16
VCC
vcc