General description
The 74HC20; 74HCT20 is a dual 4-input NAND gate. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

FEATUREs and benefits
■ Complies with JEDEC standard JESD7A
■ Low-power dissipation
■ Input levels:
    ◆ For 74HC20: CMOS level
    ◆ For 74HCT20: TTL level
■ ESD protection:
    ◆ HBM JESD22-A114F exceeds 2000 V
    ◆ MM JESD22-A115-A exceeds 200 V
■ Multiple package options
■ Specified from -40 °C to +80 °C and from -40 °C to +125 °C.