The SN75ALS174A is a quadruple line driver with 3-state differential outputs. It is designed to meet the requirements of ANSI Standards EIA/TIA-422-B and RS-485. This device is optimized for balanced multipoint bus transmission at rates of up to 20 Mbit/s. Each driver features wide positive and negative common-mode output voltage ranges that make them suitable for party-line applications in noisy environments.
●The SN75ALS174A provides positive- and negative-current limiting and thermal shutdown for protection from line fault conditions on the transmission bus line. Shutdown occurs at a junction temperature of approximately 150°C.
●The SN75ALS174A is characterized for operation from 0°C to 70°C.
●H = high level, L = low level, X = irrelevant, Z = high impedance (off)
● Meets or Exceeds the Requirements of ANSI EIA/TIA-422-B and RS-485
● High-Speed Advanced Low-Power Schottky Circuitry
● Designed for up to 20-Mbit/s Operation in Both Serial and Parallel Applications
● Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments
● Low Supply Current Requirements 55 mA Max
● Wide Positive and Negative Input/Output Bus Voltage Ranges
● Driver Output Capacity...±60 mA
● Thermal-Shutdown Protection
● Driver Positive- and Negative-Current Limiting
● Functionally Interchangeable With SN75174
