IN74ACT164 Datasheet, PDF (1/5 Pages) Integral Corp. – 8-BIT SERIAL-INPUT/PARALLEL-OUTPUT SHIFT REGISTER

IN74ACT164
8-BIT SERIAL-INPUT/PARALLEL-OUTPUT
SHIFT REGISTER
High-Speed Silicon-Gate CMOS
The IN74ACT164 is identical in pinout to the LS/ALS164,
HC/HCT164. The IN74ACT164 may be used as a level converter
for interfacing TTL or NMOS outputs to High Speed CMOS inputs.
The IN74ACT164 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 the Clock and Serial Data inputs.
• TTL/NMOS Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 µA; 0.1 µA @ 25°C
• Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74ACT164N Plastic
IN74ACT164D SOIC
T_A = -40° to 85° C for all
packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 14 =V_CC
PIN 7 = GND
FUNCTION TABLE
Inputs
Outputs
Rese Clock A1 A2 Q_A Q_B ... Q_H
t
L
X
X X L L ... L
H
XX
no change
H
H
D = data input
HD
DH
D Q_An ... Q_Gn
D Q_An ... Q_Gn
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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