Texas Instruments SN74LS645N, 1 Bus Transceiver, 8-Bit

The Texas offers a SN series of a octal bus transceivers which are designed for asynchronous two way communication between data buses. The device transmit the data from bus a to bus b or vice versa depending upon the level of the direction control input.

Hysteresis at bus input improves noise margin
Choice of true or inverting logic
Operating temperature range from –55°C to 125°C

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