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零件编号
产品描述 (功能)
HD74HC259 查看數據表(PDF) - Hitachi -> Renesas Electronics
零件编号
产品描述 (功能)
生产厂家
HD74HC259
8-bit Addressable Latch
Hitachi -> Renesas Electronics
HD74HC259 Datasheet PDF : 8 Pages
1
2
3
4
5
6
7
8
HD74HC259
Select Inputs
C
B
A
Latch Addressed
L
L
L
0
L
L
H
1
L
H
L
2
L
H
H
3
H
L
L
4
H
L
H
5
H
H
L
6
H
H
H
7
Notes: 1. D: the level at the data input
2. Qio: the level of Qi (i = 0, 1, ···7, as apropriate) before the indicated steady-state input conditions
were established.
Pin Arrangement
Latch
select
A1
B2
C3
Q
0
4
Outputs
Q
1
5
Q
2
6
Q
3
7
GND 8
A
B
CLR
C
G
Q
0
D
Q
1
Q
7
Q
2
Q
6
Q
3
Q
4
Q
5
16 V
CC
15 Clear
14 Enable
13
Data
input
12 Q
7
11 Q
6
10 Q
5
Outputs
9 Q
4
(Top view)
2
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