mm74hc164 Fairchild Semiconductor, mm74hc164 Datasheet - Page 2

• Manufacturer Part Number: mm74hc164
• Description: 8-bit Serial-in/parallel-out Shift Register
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
Connection Diagram
Logic Diagram
2
Truth Table
H
X
Q
cated steady state input conditions were established.
Q
clock; indicated a one-bit shift.
Clear Clock
AO
An
H
H
H
H
Transition from LOW-to-HIGH level.
L
HIGH Level (steady state), L
Irrelevant (any input, including transitions)
, Q
, Q
Gn
BO
, Q
The level of Q
HO
Inputs
X
L
the level of Q
A
H
X
X
L
X
A
or Q
Top View
B
H
X
X
X
L
A
G
, Q
before the most recent
LOW Level (steady state)
B
, or Q
Q
Q
H
L
L
L
AO
A
H
, respectively, before the indi-
Q
Q
Q
Q
Q
L
BO
Outputs
An
An
An
B
transition of the
...
Q
Q
Q
Q
Q
L
HO
Gn
Gn
Gn
H