The SNx5HVD1176 devices are half-duplex differential transceivers with characteristics optimized for use in PROFIBUS (EN 50170) applications. The driver output differential voltage exceeds the PROFIBUS requirements of 2.1 V with a 54-? load. A signaling rate of up to 40 Mbps allows technology growth to high data-transfer speeds. The low bus capacitance provides low signal distortion.

The SN65HVD1176 and SN75HVD1176 devices meet or exceed the requirements of ANSI standard TIA/EIA-485-A (RS-485) for differential data transmission across twisted-pair networks. The driver outputs and receiver inputs are tied together to form a half-duplex bus port with one-fifth unit load, which allows up to 160 nodes on a single bus. The receiver output stays at logic high when the bus lines are shorted, left open, or when no driver is active. The driver outputs are in high impedance when the supply voltage is below 2.5 V to prevent bus disturbance during power cycling or during live insertion to the bus. An internal current limit protects the transceiver bus pins in short-circuit fault conditions by limiting the output current to a constant value. Thermal shutdown circuitry protects the device against damage due to excessive power dissipation caused by faulty loading and drive conditions.

The SN75HVD1176 device is characterized for operation at temperatures from 0°C to 70°C. The SN65HVD1176 device is characterized for operation at temperatures from –40°C to 85°C.

For an isolated version of this device, see the ISO1176 device (SLLS897) with integrated digital isolators.

• Optimized for PROFIBUS Networks
  • Signaling Rates up to 40 Mbps
  • Differential Output Exceeds 2.1V (54-Ω Load)
  • Low Bus Capacitance of 10pF (Max)
• Meets the Requirements of TIA/EIA-485-A
• ESD Protection Exceeds ±10-kV HBM
• Fail-Safe Receiver for Bus Open, Short, Idle
• Up to 160 Transceivers on a Bus
• Low Skew During Output Transitions and Driver Enabling and Disabling
• Common-Mode Rejection up to 50MHz
• Short-Circuit Current Limit
• Hot Swap Capable
• Thermal Shutdown Protection

• Number of receivers
• 1
• Number of transmitters
• 1
• Duplex
• Half
• Supply voltage (Nom) (V)
• 5
• Signaling rate (Max) (Mbps)
• 40
• IEC 61000-4-2 contact (+/- kV)
• —
• Fault protection (V)
• -7 to 12
• Common mode range
• -7 to 12
• Number of nodes
• 160
• Features
• PROFIBUS
• Isolated
• No
• ICC (Max) (mA)
• 6
• Rating
• Catalog
• Operating temperature range (C)
• -40 to 85

SN65HVD1176的完整型号有：SN65HVD1176D、SN65HVD1176DR，以下是这些产品的关键参数及官网采购报价：

SN65HVD1176D，工作温度：-40 to 85，封装：SOIC (D)-8，包装数量MPQ：75个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN65HVD1176D的批量USD价格：1.67（1000+）

SN65HVD1176DR，工作温度：-40 to 85，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN65HVD1176DR的批量USD价格：1.392（1000+）

RS485-HF-DPLX-EVM — RS-485 半双工评估模块

RS485 半双工 EVM 可帮助设计人员评估器件性能，支持快速开发和分析采用 SN65HVD1X、SN65HVD2X、SN65HVD7X、SN65HVD8X 或 SN65HVD96 收发器的数据传输系统。此 EVM 板没有焊接到板上的 RS-485 器件。用户可以申请样片或购买任意一种 TI RS-485 半双工器件进行评估。请参见 EVM 用户指南（TI 文献编号 SLLU173）获取完整的兼容器件列表。

SN65HVD1176 IBIS Model

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