The 74LS245 is a part of the 74XXYY IC series. The SN54/74LS245 is an Octal Bus Transmitter/Receiver designed for 8-line asynchronous 2-way data communication between data buses. Direction Input (DR) controls the transmission of Data from bus A to bus B or bus B to bus A depending upon its logic level. The Enable input (E) can be used to isolate the buses.
Hysteresis Inputs to Improve Noise Immunity
2-Way Asynchronous Data Bus Communication
Input Diodes Limit High-Speed Termination Effects
ESD > 3500 Volts
What is a Bus Transceiver?
Bus transceivers are electronic tri-state bi-directional devices that allow the flow of data between two points making them compatible with bus-oriented systems or the bi-directional (input or output) control of interface circuitry. A Bus transceiver can be inverting or non-inverting, common examples are 74LS243 & LS242 IC series. Bus transceivers are designed for asynchronous two-way communication between two data buses or input/output devices. The transceiver allows for the transmission of data from the terminals A to terminals B or the reverse depending on the logic level at the direction-control input.
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