HD74LV164A8 Datasheet, PDF (2/16 Pages) Hitachi Semiconductor – 8-bit Parallel-out Serial-in Shift Register

HD74LV164A
Function Table
Inputs
Outputs
CLR
CLK
A
B
QA
QB
...
QD
L
X
X
X
L
L
...
L
H
↓
X
X
Q_A0
Q_B0
...
Q_H0
H
↑
H
H
H
Q_An
...
Q_Gn
H
↑
L
X
L
Q_An
...
Q_Gn
H
↑
X
L
L
Q_An
...
Q_Gn
Note: H: High level
L: Low level
X: Immaterial
↑: Low to high transition
↓: High to low transition
Q_AD, Q_B0...Q_H0: Outputs remain unchanged.
Q_An, Q_Bn...Q_Gn: Data shifted from the previous stage on a positive edge at the clock input.
Pin Arrangement
A1
B2
Q_A 3
Q_B 4
Q_C 5
Q_D 6
GND 7
14 V_CC
13 Q_H
12 Q_G
11 Q_F
10 Q_E
9 CLR
8 CLK
(Top view)
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