74HC164_1 Datasheet, PDF (1/6 Pages) Estek Electronics Co. Ltd – identical in pinout to the LS/ALS164

74HC164
Description
The 74HC164 is identical in pinout to the LS/ALS164. The Device inputs are compatible with
standard CMOS outputs, with pullup resistors, they are compatible with LS/ALSTTL outputs. The 74HC164 is
an 8-bit, serial-itnput oparallel-output shift register. Two serial data inputs, A1 and A2, are provided so that
one input May be used as a data enab le. Data is entered on each rising Edge of the clock. The active-
low async-
hronous Reset overrides the Clock and Serial Data inputs.
Features
•Outputs Directly Interface to CMOS, NMOS, and TTL
•Operating Voltage Range: 2.0 to 6.0 V
•Low Input Current: 1.0 µA
•High Noise Immunity Characteristic of CMOS Devices
Logic Diagram
14
1
DIP - 14
14
1
SOP –14
Package
Pin Assignment
Function Table
RESET
L
H
H
H
Inputs
CLOCK
X
A1
X
XX
XH
D
Outputs
QA QB… QH
L L…
L
no change
D
QAn… QGn
D
D = data input
X = don' t care
Q An - Q Gn = data shifted from the previous stage on a
rising edge at the clock input.
BEIJING ESTEK ELECTRONICS CO.,LTD
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