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RS-485 & RS-422 收發器

SN65HVD24

現行

擴展共模 RS-485 收發器

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產品規格表

SN65HVD24

現行
立即訂購

產品詳細資料

Number of receivers 1 Number of transmitters 1 Duplex Half Signaling rate (max) (Mbps) 3 Fault protection (V) -27 to 27 Common-mode range (V) -20 to 25 Number of nodes 256 Features Extended common mode Isolated No Supply current (max) (µA) 14000 Rating Catalog Operating temperature range (°C) -40 to 85
Number of receivers 1 Number of transmitters 1 Duplex Half Signaling rate (max) (Mbps) 3 Fault protection (V) -27 to 27 Common-mode range (V) -20 to 25 Number of nodes 256 Features Extended common mode Isolated No Supply current (max) (µA) 14000 Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Common-mode voltage range (–20 V to 25 V) more than doubles TIA/EIA-485 requirement
  • Receiver equalization extends cable length, signaling rate (SN65HVD2[3,4])
  • Reduced unit-load for up to 256 nodes
  • Bus I/O protection to over 16-kV HBM
  • Failsafe receiver for open-circuit, short-circuit, and idle-bus conditions
  • Low standby supply current 1 µA (maximum)
  • More than 100 mV receiver hysteresis
  • Common-mode voltage range (–20 V to 25 V) more than doubles TIA/EIA-485 requirement
  • Receiver equalization extends cable length, signaling rate (SN65HVD2[3,4])
  • Reduced unit-load for up to 256 nodes
  • Bus I/O protection to over 16-kV HBM
  • Failsafe receiver for open-circuit, short-circuit, and idle-bus conditions
  • Low standby supply current 1 µA (maximum)
  • More than 100 mV receiver hysteresis

The transceivers in the SN65HVD2x family offer performance far exceeding typical RS-485 devices. In addition to meeting all requirements of the TIA/EIA ‑485-A standard. The SN65HVD2x family operates over an extended range of common-mode voltages and has features such as high ESD protection, wide receiver hysteresis, and failsafe operation. This family of devices is designed for long-cable networks, and other applications where the environment is too harsh for ordinary transceivers.

These devices are designed for bidirectional data transmission on multipoint twisted-pair cables. Example applications are digital motor controllers, remote sensors and terminals, industrial process control, security stations, and environmental control systems.

These devices combine a 3-state differential driver and a differential receiver that operate from a single 5-V power supply. The driver differential outputs and the receiver differential inputs are connected internally to form a differential bus port that offers minimum loading to the bus. This port features an extended common-mode voltage range, making the device suitable for multipoint applications over long cable runs.

The transceivers in the SN65HVD2x family offer performance far exceeding typical RS-485 devices. In addition to meeting all requirements of the TIA/EIA ‑485-A standard. The SN65HVD2x family operates over an extended range of common-mode voltages and has features such as high ESD protection, wide receiver hysteresis, and failsafe operation. This family of devices is designed for long-cable networks, and other applications where the environment is too harsh for ordinary transceivers.

These devices are designed for bidirectional data transmission on multipoint twisted-pair cables. Example applications are digital motor controllers, remote sensors and terminals, industrial process control, security stations, and environmental control systems.

These devices combine a 3-state differential driver and a differential receiver that operate from a single 5-V power supply. The driver differential outputs and the receiver differential inputs are connected internally to form a differential bus port that offers minimum loading to the bus. This port features an extended common-mode voltage range, making the device suitable for multipoint applications over long cable runs.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 SN65HVD2x Extended Common-Mode RS-485 Transceivers datasheet (Rev. G) PDF | HTML 2022/9/20
技術文章 The secret to extending RS-485 communication performance PDF | HTML 2015/7/24
應用說明 Use Receiver Equalization to Extend RS-485 Data Communications* 2004/7/6
應用說明 The RS-485 Unit Load and Maximum Number of Bus Connections 2004/3/15

設計與開發

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開發板

RS485-HF-DPLX-EVM — RS-485 半雙工評估模組

RS-485 半雙工評估模組 (EVM) 可協助設計師評估裝置性能，其支援使用 SN65HVD1x、SN65HVD2x、SN65HVD7x、SN65HVD8x 和 SN65HVD96 半雙工收發器之一快速開發與分析資料傳輸系統。EVM 板出貨時並未將 RS-485 裝置焊接至電路板上。使用者可索取樣品或購買任何 TI RS-485 半雙工裝置，以進行評估。如需相容裝置的完整清單，請參閱 EVM 使用指南。
使用指南: PDF | HTML
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模擬型號

SN65HVD24 IBIS Model (Rev. A)

SLLC159 (37 KB) - IBIS 模型
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參考設計

TIDA-00214 — 半雙工、非隔離式 RS-485 BoosterPack 參考設計

半雙工、非隔離式 RS-485 BoosterPack 方便使用者評估 TI 的 RS-485 收發器，適用於建築管理系統 (BMS)、工廠自動化、建築自動化及 HVAC 等應用。此 BoosterPack 經過設計與測試，在纜線長度達 1000 英尺且連接 32 個節點的情況下，可支援高達 1.25Mbps 的資料速率。板載的延伸共模 RS-485 收發器可輕鬆拆卸，並替換成任何 TI 的半雙工、8 針腳 SOIC RS-485 收發器。系統設計人員可藉此評估具備不同效能目標的多款收發器。RS-485 BoosterPack 與 20 針腳及 40 針腳的 TI LaunchPad 相容。

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