The 74HCT245D is an Octal Transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. It features an output enable input (OE) for easy cascading and a send/receive input (DIR) for direction control. OE controls the outputs so that the buses are effectively isolated. This is a high-speed Si-gate CMOS Device and is pin compatible with low-power Schottky TTL (LSTTL).