8-Bit Serial or Parallel-Input/Serial-Output Shift Register with Input Latch
High-Performance Silicon-Gate CMOS

The IN74HC597A is identical in pinout to the LS/ALS597. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.
This device consists of an 8-bit input latch which feeds parallel data to an  8-bit  shift  register.  Data  can  also  be  loaded  serially  (see  Function Table).

•  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