74HCT02 Datasheet, NXP Semiconductors

* Input levels:
* For 74HC02: CMOS level
* For 74HCT02: TTL level
* Complies with JEDEC standard no. 7A
* ESD protection:
* HBM JESD22-A114F excee.

The 74HC02; 74HCT02 is a quad 2-input NOR gate. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. 2. Features and benefits
* Input levels:
* For 74HC02: CMOS lev.