The 74HCT245D.653 is a general purpose 8-bit transceiver/bus-driver with direction protocols, manufactured by NXP Semiconductors. It is a high-speed CMOS device designed for the low-voltage, high-output-drive applications. The device is capable of transforming TTL/CMOS input levels to CMOS output levels and also bidirectional asynchronous data-bus line drivers. It features a common input/output enable pin, making it suitable for address or data applications. It also features protection circuitry to ensure that the outputs are in high impedance state during power-up and power-down.