The SN65ALS1176 differential bus transceiver is designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and meets TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendations V.11 and X.27. The SN65ALS1176 combines a 3-state differential line driver and a differential input 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, that can be connected externally to function as a direction control. The driver differential outputs and the receiver differential inputs are connected internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus when the driver is disabled or VCC = 0. This port features wide positive and negative common-mode voltage ranges, making the device suitable for party-line applications.
The SN65ALS1176 is characterized for operation from –
Features:-
- Meets or Exceeds the Requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendations V.11 and X.2.
- Recommended for PROFIBUS Applications.
- Operates at Data Rates up to 35 MBaud.
- Operating Temperature nature Range. . . –25°C to 80°C.
- Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments.
- Low Supply-Current Requirement.. . . 30 mA Max.
- Wide Positive and Negative Input/Output Bus-Voltage Ranges.
- Thermal-Shutdown Protection.
- Driver Positive- and Negative-Current Limiting.
- Receiver Input Hysteresis.
- Glitch-Free Power-Up and Power-Down Protection.
- Receiver Open-Circuit Fail-Safe Design.
- Package Options Include Plastic Small-Outline (D) Package.
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