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RS-232 收發器

TRS3122E

現行

具邏輯電源接腳和 +/-15kV IEC-ESD 保護的 1.65 至 5.5-V 1Mbps RS-232 線路驅動器/接收器

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產品規格表

TRS3122E

現行
產品規格表 立即訂購

產品詳細資料

Drivers per package 2 Receivers per package 2 Logic voltage (min) (V) 1.65 Data rate (max) (Mbps) 1 Main supply voltage (nom) (V) 1.65 - 5.5 Features Auto-Powerdown Plus ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
Drivers per package 2 Receivers per package 2 Logic voltage (min) (V) 1.65 Data rate (max) (Mbps) 1 Main supply voltage (nom) (V) 1.65 - 5.5 Features Auto-Powerdown Plus ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • Extended VCC operating nodes: 1.8 V, 3.3 V, or
    5.0 V
    • Unique Tripler Charge Pump Architecture
      Enables Low VCC of 1.8V While Maintaining
      Compatibility with 3.3 V and 5 V Supplies
  • Integrated Level-Shifting Functionality Eliminates
    the Need for External Power or Additional Level
    Shifter While Interfacing with Low-Voltage MCUs
  • Enhanced ESD Protection on RIN Inputs and
    DOUT Outputs
    • ±15 kV IEC 61000-4-2 Air-Gap Discharge
    • ±8 kV IEC 61000-4-2 Contact Discharge
    • ±15 kV Human-Body Model
  • Specified 1000-kbps Data Rate
  • Auto Powerdown Plus Feature
  • Low 0.5µA Shutdown Supply Current
  • Meets or Exceeds Compatibility Requirements of
    RS-232 Interface
  • For 2.5 V Single Supply Applications, Consider
    TRS3318E as an Optimized Solution
  • Extended VCC operating nodes: 1.8 V, 3.3 V, or
    5.0 V
    • Unique Tripler Charge Pump Architecture
      Enables Low VCC of 1.8V While Maintaining
      Compatibility with 3.3 V and 5 V Supplies
  • Integrated Level-Shifting Functionality Eliminates
    the Need for External Power or Additional Level
    Shifter While Interfacing with Low-Voltage MCUs
  • Enhanced ESD Protection on RIN Inputs and
    DOUT Outputs
    • ±15 kV IEC 61000-4-2 Air-Gap Discharge
    • ±8 kV IEC 61000-4-2 Contact Discharge
    • ±15 kV Human-Body Model
  • Specified 1000-kbps Data Rate
  • Auto Powerdown Plus Feature
  • Low 0.5µA Shutdown Supply Current
  • Meets or Exceeds Compatibility Requirements of
    RS-232 Interface
  • For 2.5 V Single Supply Applications, Consider
    TRS3318E as an Optimized Solution

The TRS3122E is a two-driver and two-receiver RS-232 interface device, with split supply pins for mixed-voltage operation. All RS-232 inputs and outputs are protected to ±15 kV using the IEC 61000-4-2 Air-Gap Discharge method, ±8 kV using the IEC 61000-4-2 Contact Discharge method, and ±15 kV using the Human-Body Model.

The charge pump requires five small 0.1-µF capacitors for operation from as low as a 1.8-V supply. The TRS3122E is capable of running at data rates up to 1000 kbps, while maintaining RS-232-compatible output levels.

The TRS3122E has a unique VL pin that allows operation in mixed-logic voltage systems. Both driver in (DIN) and receiver out (ROUT) logic levels are pin programmable through the VL pin. This eliminates the need for additional voltage level shifter while interfacing with low-voltage microcontrollers or UARTs.

Auto Powerdown Plus automatically places the device in a low power mode when the device has not received or transmitted data for more than 30 seconds. This feature makes this device a very attractive option for battery powered or other power-sensitive applications.

The TRS3122E is a two-driver and two-receiver RS-232 interface device, with split supply pins for mixed-voltage operation. All RS-232 inputs and outputs are protected to ±15 kV using the IEC 61000-4-2 Air-Gap Discharge method, ±8 kV using the IEC 61000-4-2 Contact Discharge method, and ±15 kV using the Human-Body Model.

The charge pump requires five small 0.1-µF capacitors for operation from as low as a 1.8-V supply. The TRS3122E is capable of running at data rates up to 1000 kbps, while maintaining RS-232-compatible output levels.

The TRS3122E has a unique VL pin that allows operation in mixed-logic voltage systems. Both driver in (DIN) and receiver out (ROUT) logic levels are pin programmable through the VL pin. This eliminates the need for additional voltage level shifter while interfacing with low-voltage microcontrollers or UARTs.

Auto Powerdown Plus automatically places the device in a low power mode when the device has not received or transmitted data for more than 30 seconds. This feature makes this device a very attractive option for battery powered or other power-sensitive applications.
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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 TRS3122E 1.8 V Low Power Dual RS-232 Transceiver datasheet (Rev. C) PDF | HTML 2016/5/13
應用說明 RS-232 Glossary and Selection Guide PDF | HTML 2023/5/23
使用指南 RS232 BoosterPack™ Getting Started Guide 2016/12/8
應用說明 Designing with the TRS3122E (Rev. A) PDF | HTML 2016/7/23

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

BOOSTXL-RS232 — TRS3122E：RS-232 收發器 BoosterPack™ 插入式模組

BOOSTXL-RS232 是用於 TI LaunchPad™ 開發套件的 BoosterPack™ 外掛程式模組。BOOSTXL-RS232 利用業界第一款 1.8-V 無電感器低功耗 RS-232 收發器 TRS3122E，實現快速 RS-232 原型設計。此電路板配備 DB-9 連接器和 LaunchPad 開發套件的標準 40 針腳標頭。這些搭配一起後，可提供與 LaunchPad 開發套件和外部 RS-232 序列埠簡易連接的方式。BoosterPack 外掛程式模組也配備標頭，可讓 TRS3122E 的驅動器輸入與接收器輸出被指派至連接的 LaunchPad (...)

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開發板

TRS3122EEVM — TRS3122E：1.8V RS-232 收發器評估模組

TRS3122EEVM 是 TRS3122E 的評估模組，亦即 1.8V 的高速 RS-232 收發器。此模組可使用安裝的 DB-9 連接器和端子區塊進行裝置評估。電路板可設定為回送狀態進行非常簡單的評估，或是搭配診斷軟體運作，以便深入了解。
使用指南: PDF | HTML
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模擬型號

TRS3122E IBIS Model

SLLM309.ZIP (102 KB) - IBIS 模型
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參考設計

TIDA-01230 — 具有整合訊號和電源的隔離式 RS-232 參考設計

TIDA-01230 參考設計提供一套精巧型解決方案，能產生隔離式 DC 電源，同時支援隔離式 RS-232 通訊。此設計包含一個具整合電源功能的強化型數位隔離器，搭配 RS-232 通訊收發器。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RGE) 24 Ultra Librarian
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