HD74LV123A 查看數據表（PDF） - Hitachi -> Renesas Electronics
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HD74LV123A Datasheet PDF : 20 Pages
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HD74LV123A
Function Table
Inputs
CLR
A
B
L
X
X
H
H
X
H
X
L
H
L
↑
H
↓
H
↑
L
H
Note: H: High level
L: Low level
X: Immaterial
↑: Low to high transition
↓: High to low transition
: High level pulse
: Low level pulse
Pin Arrangement
Outputs
Q
Q
L
H
L
H
L
H
1A 1
1B 2
1CLR 3
1Q 4
2Q 5
2Cext 6
2Rext / Cext 7
GND 8
(Top view)
16 VCC
15 1Rext / Cext
14 1Cext
13 1Q
12 2Q
11 2CLR
10 2B
9 2A
2
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