The IN74HC75A is identical in pinout to the LS/ALS75. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.
This device consists of two independent 2-bit transparent latches and can be used as temporary storage for binary information between processing units and input/output or indicator units. Each latch stores the input data while Latch Enable is at a logic low. The outputs follow the data inputs when Latch Enable is at a logic high.

• 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