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HD74HC257FPEL 데이터 시트보기 (PDF) - Renesas Electronics
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HD74HC257FPEL
Quad. 2-to-1-line Data Selectors/Multiplexers (with noninverted 3-state outputs)
Renesas Electronics
HD74HC257FPEL Datasheet PDF : 8 Pages
1
2
3
4
5
6
7
8
HD74HC257
Pin Arrangement
Select 1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
S
1A OC
1B 4A
1Y 4B
2A 4Y
2B 3A
2Y 3B
3Y
(Top view)
16 V
CC
15
Output
control
14 4A
13 4B
12 4Y
11 3A
10 3B
9 3Y
Logic Diagram
1A
1B
2A
2B
3A
3B
4A
4B
V
CC
1Y
V
CC
2Y
V
CC
3Y
V
CC
4Y
Select
Output
control
Rev.2.00 Jan 31, 2006 page 2 of 7
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