MC74VCX16245 Overview
It is designed for very high speed, very low power operation in 1.8V, 2.5V or 3.3V systems. When operating at 2.5V (or 1.8V) the part is designed to tolerate voltages it may encounter on either inputs or outputs when interfacing to 3.3V busses. It is guaranteed to be over voltage tolerant to 3.6V.