SN75ALS171

SN75ALS171, SN75ALS171A TRIPLE DIFFERENTIAL BUS TRANSCEIVERS D Three Bidirectional Transceivers D Driver Meets or Exceeds the Requirements of ANSI EIA/TIA-422-B and RS-485 and ITU Recommendation V.11 D Two Skew Limits Available D Designed to Operate Up to 20 Million Data Transfers per Second (FAST-20 SCSI) D High-Speed Advanced Low-Power Schottky Circuitry D Low Pulse Skew . . . 5 ns Max D Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments D Features Independent Driver Enables and Combined Receiver Enables D Wide Positive and Negative Input/Output Bus Voltages Ranges D Driver Output Capacity . . . ± 60 mA D Thermal Shutdown Protection D Driver Positive- and Negative-Current Limiting D Receiver Input Impedances . . . 12 kΩ Min D Receiver Input Sensitivity . . . ± 300 mV Max D Receiver Input Hysteresis . . . 60 mV Typ D Operates From a Single 5-V Supply D Glitch-Free Power-Up and Power-Down Protection SLLS056D – AUGUST 1987 – REVISED SEPTEMBER 1995 DW OR J PACKAGE (TOP VIEW) 1R 1 1DE 2 1D 3 GND 4 GND 5 2R 6 2DE 7 2D 8 3R 9 3DE 10 20 1B 19 1A 18 RE 17 CDE 16 VCC 15 2B 14 2A 13 3B 12 3A 11 3D description The SN75ALS171 and the SN75ALS171A triple differential bus transceivers are monolithic integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines, and each driver meets ANSI Standards EIA/TIA-422-B and RS-485 and both the drivers and receivers meet ITU Rec...