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74AC139 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics
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74AC139
Dual 1-of-4 Decoder/Demultiplexer
Hitachi -> Renesas Electronics
74AC139 Datasheet PDF : 10 Pages
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HD74AC139/HD74ACT139
Pin Arrangement
Logic Symbol
E
a
1
A
0a
2
A
1a
3
O
0a
4
O
1a
5
O
2a
6
O
3a
7
GND 8
(Top view)
16 V
CC
15
E
b
14 A
0b
13 A
1b
12
O
0b
11
O
1b
10
O
2b
9
O
3b
E A
0
A
1
DECODER a
O
0
O
1
O
2
O
3
Pin Names
A
0
, A
1
E
O
0
to
O
3
Address Inputs
Enable Inputs
Outputs
E A
0
A
1
DECODER b
O
0
O
1
O
2
O
3
2
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