TECHNICAL DATA
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
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Reset
L
H
H
PIN 14 =V
CC
PIN 7 = GND
Clock
X
A1 A2
X X
X X
H D
L
Outputs
Q
A
Q
B
... Q
H
L
... L
no change
D Q
An
... Q
Gn
H
D H
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.
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
