General Description
   The MM74HC02 NOR gates utilize advanced silicongate CMOS technology to achieve operating speeds similar to LS-TTL gates with the low power consumption of standard CMOS integrated circuits. All gates have buffered outputs, providing high noise immunity and the ability to drive 10 LS-TTL loads. The 74HC logic family is functionally as well as pin-out compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.

FEATUREs
• Typical Propagation Delay: 8 ns
• Wide Power Supply Range: 2 V to 6 V
• Low Quiescent Supply Current: 20 µA Maximum
   (74HC Series)
• Moisture Level Sensitivity 1
• Low Input Current: 1 µA Maximum
• High Output Current: 4 mA Minimum