深圳市广辉电子有限公司

说明

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 together 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 V_CC = 0.

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特性

• Meets or Exceeds the Requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendations V.11 and X.27
• Recommended for PROFIBUS Applications
• Operates at Data Rates up to 35 MBaud
• Operating Temperature Range
  ...-25°C to 85°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 and (P) DIPs

参数