The SN75179AP from Texas Instruments is a differential driver and receiver pair designed for bidirectional data communication on multipoint bus transmission lines. This product is designed to meet the requirements of ANSI Standards EIA/TIA-422-B and ITU Recommendation V.11.

It is a monolithic, integrated circuit that includes a differential line driver and a differential line receiver, both of which operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively, which can be externally connected together to function as a direction control.

The SN75179AP driver features a high output impedance in the power-off or high-impedance state, which minimizes the load on the bus line when not transmitting. The receiver features a high input impedance, allowing up to 32 transceivers on the bus. Its fail-safe design ensures that the receiver output is high if the inputs are open or shorted.

With a wide common-mode range of -7V to 12V, the SN75179AP can operate in electrically noisy environments, and can withstand the large voltage transients that commonly occur on the bus lines. It also features thermal shutdown protection to prevent damage from excessive power dissipation.

This product comes in a 8-Pin Plastic Dual-In-Line Package (PDIP) and is characterized for operation from 0°C to 70°C. Its applications include telecommunications, industrial control, and any other application where long cable lengths, large numbers of nodes, or noisy environments may be present.

The SN75179AP from Texas Instruments is a reliable and robust solution for your multipoint bus transmission needs, offering high performance, flexibility, and protection against harsh conditions.