The PI74LVTCH16245 is a non-inverting 16-bit Bidirectional Transceiver designed for low-voltage 2.7V to 3.6V VCC operation, with the capability of interfacing to the 5V system environment. This tranceiver is designed for asynchronous two-way communication between data buses. The direction control input pin (xDIR) determines the direction of the data flow through the bidirectional transceiver. The Direction and Output Enable controls are designed to operate this device as either two independent 8-bit tranceivers or one 16-bit transceiver. The output enable (xOE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition.