74LVC1G99 U4465 Compatible For MacBook Retina 12" (A1534 / Early 2015 / Early 2016 / Mid 2017) (820-00045 / 820-00244: QFN-8 Pin)

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 VCC or GND.
The 3-state output is controlled by the output enable input (OE).
A HIGH level at OE causes the output (Y) to assume a high-impedance OFF-state.
When OE is LOW, the output state is determined by the signals applied to the Schmitt trigger inputs (A, B, C and D)