The MC74VHC1G01 is an advanced high speed CMOS 2�input NAND gate with an open drain output fabricated with silicon gate CMOS technology. The internal circuit is composed of multiple stages, including an open drain output which provides the ability to set output switching level. This allows the MC74VHC1G01 to be used to interface 5 V circuits to circuits of any voltage between VCC and 5.5 V using anexternal resistor and power supply. The MC74VHC1G01 input structure provides protection when voltages up to 5.5 V are applied, regardless of the supply voltage.