The IN74HC00A is identical in pinout to the LS/ALS00. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.

•  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