74LS245.pdf 54LS245 DM54LS245 DM74LS245 TRI-STATE Octal Bus Transceiver June 1989 54LS245 DM54LS245 DM74LS245 TRI-STATE Octal Bus Transceiver General Description These octal bus transceivers are designed for asynchro- Y PNP inputs reduce DC loading on bus lines nous two-way communication between data buses The Y Hysteresis at bus inputs improve noise margins control function implementation minimizes external timin……