75ALS170

SN75ALS170, SN75ALS170A TRIPLE DIFFERENTIAL BUS TRANSCEIVER D Three Bidirectional Transceivers D Driver Meets or Exceeds ANSI Standard 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 Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments D Wide Positive and Negative Input/Output Bus Voltage 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 Operate From a Single 5-V Supply D Glitch-Free Power-Up and Power-Down Protection D Feature Independent Direction Controls for Each Channel SLLS055D – AUGUST 1987 – REVISED SEPTEMBER 1995 DW PACKAGE (TOP VIEW) 1D 1 1DIR 2 NC 3 GND 4 NC 5 2D 6 2DIR 7 NC 8 3D 9 3DIR 10 20 1B 19 1A 18 NC 17 NC 16 VCC 15 2B 14 2A 13 3B 12 3A 11 NC NC – No internal connection J PACKAGE (TOP VIEW) 1D 1 1DIR 2 GND 3 2D 4 2DIR 5 3D 6 3DIR 7 14 1B 13 1A 12 VCC 11 2B 10 2A 9 3B 8 3A description The SN75ALS170 and SN75ALS170A triple differential bus transceivers are monolithic integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and the driver meets ANSI Standards EIA/T...