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-it put oparallel-output shift register. Two serial data inputs, A1 and A2, are provided so that
n
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 µ
A
•
High Noise Immunity Characteristic of CMOS Devices
14
1
14
1
DIP - 14
Logic Diagram
SOP –
14
Package
Pin Assignment
Function Table
Inputs
RESET
L
H
H
H
CLOCK
X
A1
X
X X
XH
D
L
L
Outputs
QA QB… QH
L…
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.
no change
D
QAn… QGn
D
BEIJING ESTEK ELECTRONICS CO.,LTD
1
ESTEK [ Estek Electronics Co. Ltd ]
