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TRS3122E

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1,65- bis 5,5-V-1Mbps-RS-232-Leitungstreiber/‑empfänger mit Logik-Versorgungs-Pin und +/-15-kV-IEC-E

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Produktdetails

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 x 4
  • 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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Technische Dokumentation

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Typ Titel Datum
* Data sheet TRS3122E 1.8 V Low Power Dual RS-232 Transceiver datasheet (Rev. C) PDF | HTML 13 Mai 2016
Application note RS-232 Glossary and Selection Guide PDF | HTML 23 Mai 2023
User guide RS232 BoosterPack™ Getting Started Guide 08 Dez 2016
Application note Designing with the TRS3122E (Rev. A) 23 Jul 2016
EVM User's guide TRS3122EEVM User's Guide 16 Mär 2016

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

BOOSTXL-RS232 — TRS3122E: RS-232-Transceiver-BoosterPack™-Einsteckmodul

Das BOOSTXL-RS232 ist ein BoosterPack™ Plug-in-Modul für ein TI LaunchPad™ Entwicklungskit. Der BOOSTXL-RS232 ermöglicht schnelles RS-232-Prototyping mit dem TRS3122E, dem branchenweit ersten induktorlosen RS-232-Transceiver mit 1,8 V. Die Platine ist mit einem DB-9-Steckverbinder (...)

Benutzerhandbuch: PDF
Evaluierungsplatine

TRS3122EEVM — TRS3122E: 1,8 V RS-232 Transceiver-Evaluierungsmodul

The TRS3122EEVM is an evaluation module for the TRS3122E, a 1.8V high-speed RS-232 transceiver. The module enables device evaluation using the installed DB-9 connector and terminal block. The board can be set in a loopback state for very simple evaluation or operated in tandem with diagnostic (...)
Benutzerhandbuch: PDF
Simulationsmodell

TRS3122E IBIS Model

SLLM309.ZIP (102 KB) - IBIS Model
Simulationstool

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
Simulationstool

TINA-TI — SPICE-basiertes analoges Simulationsprogramm

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Benutzerhandbuch: PDF
Referenzdesigns

TIDA-01230 — Isolierte RS-232-Schnittstelle mit integriertem Signal- und Referenzdesign

The TIDA-01230 reference design provides a compact solution capable of generating isolated DC power while supporting isolated RS-232 communication. The design consists of a reinforced digital isolator with integrated power combined with an RS-232 communication transceiver.
Design guide: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VQFN (RGE) 24 Ultra Librarian

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