Toshiba 74HC02D, Quad 2-Input NOR Logic Gate, 14-Pin SOIC

The 74HC02D is a high speed CMOS 2-INPUT NAND SCHMITT TRIGGER GATE fabricated with silicon gateC2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. Pin configuration and function are the same as the 74HC00D but the inputs have 25% VCC hysteresis and with its schmitt trigger inputs, the 74HC132D can be used as a line receiver for slow input signals. All inputs are equipped with protection circuits against static discharge or transient excess voltage.

High speed: tpd = 6 ns (typ.) at VCC = 5 V
Low power dissipation: ICC = 1.0 μA (max) Ta = 25 
Balanced propagation delays: tPLH ≈ tPHL
Wide operating voltage range: VCC(opr) = 2.0 to 6.0 V, Quad 2-Input NOR Gate