Overview: 74VCXH16245 Low−Voltage 1.8/2.5/3.3V 16−Bit Transceiver
With 3.6 V−Tolerant Inputs and Outputs (3−State, Non−Inverting)
The 74VCXH16245 is an advanced performance, non−inverting 16−bit transceiver. It is designed for very high−speed, very low−power operation in 1.8 V, 2.5 V or 3.3 V systems. When operating at 2.5 V (or 1.8 V) the part is designed to tolerate voltages it may encounter on either inputs or outputs when interfacing to 3.3 V busses. It is guaranteed to be over−voltage tolerant to 3.6 V. The VCXH16245 is designed with byte control. It can be operated as two separate octals, or with the controls tied together, as a 16−bit wide function. The Transmit/Receive (T/Rn) inputs determine the direction of data flow through the bi−directional transceiver. Transmit (active−HIGH) enables data from A ports to B ports; Receive (active−LOW) enables data from B to A ports. The Output Enable inputs (OEn), when HIGH, disable both A and B ports by placing them in a HIGH Z condition. The data inputs include active bushold circuitry, eliminating the need for external pull−up resistors to hold unused or floating inputs at a valid logic state.
