The 74LVC1G99 provides a low voltage, ultra-configurable, multiple function gate with 3-state output. The device can be configured as one of several logic functions including, AND, OR, NAND, NOR, XOR, XNOR, inverter, buffer and MUX. No external components are required to configure the device as all inputs can be connected directly to VCCor GND. The 3-state output is controlled by the output enable input (OE). A HIGH level atOEcauses the output (Y) to assume a high-impedance OFF-state. WhenOEis LOW, the output state is determined by the signals applied to the Schmitt trigger inputs (A, B, C and D).