IN74HC164 Datasheet, PDF (1/5 Pages) Integral Corp. – 8-Bit Serial-Input/Parallel-Output Shift Register, High-Performance Silicon-Gate CMOS

TECHNICAL DATA
8-Bit Serial-Input/Parallel-Output
Shift Register
High-Performance Silicon-Gate CMOS
IN74HC164
The IN74HC164 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 IN74HC164 is an 8-bit, serial-input to parallel-output shift
register. Two serial data inputs, A1 and A2, are provided so that one
input may be used as a data enable. Data is entered on each rising edge
of the clock. The active-low asynchronous Reset overrides theClock
and Serial Data inputs.
• 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
ORDERING INFORMATION
IN74HC164N Plastic
IN74HC164D SOIC
T_A = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 14 =V_CC
PIN 7 = GND
FUNCTION TABLE
Inputs
Outputs
Reset Clock A1 A2 Q_A Q_B ... Q_H
L
X
X X L L ... L
H
XX
no change
H
HD
D Q_An ... Q_Gn
H
DH
D Q_An ... Q_Gn
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.
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