HD74HC442/HD74HC443/HC74HC444 Quad.
Tridirectional Bus Transceiver (with noninverted 3-state outputs) Quad.
Tridirectional Bus Transceiver (with inverted 3-state outputs) Quad Tridirectional Bus Transceiver (with noninverted/inverted 3-state outputs) Description These bus transceivers are designed for a synchronous three-way communication between four-line data buses.
They give the designer a choice of selecting inverting, noninverting or a combination of inverting and noninverting data paths with 3-state outputs.
The S 0 and S1 inputs select the bus from which data are to be transferred.
The G inputs enable the bus or buses to which data are to be transferred.
The port for any bus selected...

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