MOTOROLA SEMICONDUCTOR TECHNICAL DATA Quad 2-Input NOR Gate High Performance Silicon Gate CMOS The MC54/74HC02A is identical in pinout to the LS02.
The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.
Output Drive Capability: 10 LSTTL Loads Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2.0 to 6.0 V Low Input Current: 1.0 µA High No