HD74HC258 查看數據表（PDF） - Renesas Electronics
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HD74HC258 Datasheet PDF : 8 Pages
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HD74HC258
Pin Arrangement
Select 1
Inputs
1A 2
1B 3
Outputs 1Y 4
Inputs
2A 5
2B 6
Outputs 2Y 7
GND 8
S
1A
G
1B
4A
1Y
4B
2A
4Y
2B
3A
2Y 3Y 3B
16 VCC
15
Output
control
14 4A
13 4B
Inputs
12 4Y Output
11 3A
10 3B
Inputs
9 3Y Output
(Top view)
Logic Diagram
1A
1B
2A
2B
3A
3B
4A
4B
VCC
1Y
VCC
2Y
VCC
3Y
VCC
4Y
Select
Output
control
Rev.2.00 Jan 31, 2006 page 2 of 7
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