QUAD BUS TRANSCEIVER
The SN54/ 74LS242 and SN54 / 74LS243 are Quad Bus Transmitters / Receivers designed for 4-line asynchronous 2-way data communications between data buses.
SN54/74LS242 SN54/74LS243
Hysteresis at Inputs to Improve Noise Immunity 2-Way Asynchronous Data Bus Communication Input Clamp Diodes Limit High-Speed Termination Effects
LOGIC ...
