HD74AC164 Datasheet, PDF (1/10 Pages) Hitachi Semiconductor – Serial-In, Parallel-Out Shift Register

HD74AC164/HD74ACT164
Serial-In, Parallel-Out Shift Register
Description
The HD74AC164/HD74ACT164 is a high-speed 8-bit serial-in/parallel-out shift register. Serial data is
entered through a 2-input AND gate synchronous with the Low-to-High transition of the clock. The device
features an asynchronous Master Reset which clears the register, setting all outputs Low independent of the
clock.
Features
• Outputs Source/Sink 24 mA
• HD74ACT164 has TTL-Compatible Inputs
Pin Arrangement
A1
B2
Q0 3
Q1 4
Q2 5
Q3 6
GND 7
(Top view)
14 VCC
13 Q7
12 Q6
11 Q5
10 Q4
9 MR
8 CP