RS-232 transceivers

Increase system protection and data rates while lowering power consumption

parametric-filterView all products
Our portfolio of transceivers offers high electrostatic discharge protection to enhance RS-232 signaling reliability. Our integrated devices feature voltage ranges as low as 1.8 V and a variety of channel configurations and data rates for reliable communication in harsh environments.

Browse by category

Select by type

High-ESD transceivers

Design for harsh environments and save board space using our RS-232 transceivers with integrated IEC-ESD 61000-4-2 support up to ±15-kV air-gap discharge, ±8-kV CDM and ±15-kV HBM.

High data rate transceivers

Optimize applications requiring data rates up to 1 Mbps using RS-232 transceivers with a wide range of channel configurations.

Low-voltage transceivers

Design for small battery-powered applications with RS-232 transceivers in QFN packages as small as 16 mm2 and compatible with 1.8-V processor interfaces.

Featured RS-232 transceivers

Why choose our RS-232 portfolio?


Enhance signaling reliability

Provide flexibility and reliability through multi-channel, low-noise-sensitivity RS-232 transceivers


Implement with ease

Design with ease, knowing that RS-232 enables communication distances as far as 15 m, without the need for software


Provide a cost-effective solution

Improve cost-effectiveness through our RS-232 devices' power-efficient features and small packages.

Technical resources

Technical article
Technical article
How the RS-232 transceiver’s regulated charge-pump circuitry works
Learn how the RS-232 transceiver's regulated charge-pump circuitry works and how the output voltage is regulated based on it.
Technical article
Technical article
How to choose a TVS diode for RS-232, RS-485 and CAN based on voltage ratings
Learn about voltage parameters and the proper types of TVS diodes for RS-232, RS-485 and Controller Area Network (CAN) applications.
Technical article
Technical article
Active RS-232 power consumption: Why isn’t it in the data sheet?
Learn how while most new RS-232 devices will have at least one active current or power specification, there are many with none.

Discover featured applications

Data Center and Enterprise
Explore our RS-232 device portfolio for your data center and enterprise designs.
Factory Automation and Control
Our RS-232 devices help you increase security and safety in your factory and automation control applications.
Wired Networking
Achieve fast data speeds while reducing power consumption in your wired networking designs

Explore our RS-232 device portfolio for your data center and enterprise designs.

Our products for your rack server, server motherboard, and other data center and enterprise applications include RS-232 transceivers suitable for connecting with microcontrollers (MCUs) and microprocessors, with multiple transmitter and receiver configurations (one and one, two and two, and three and five). Devices with integrated level shifters enable interfacing with low-voltage MCUs, while a variety of package options include very thin quad flat no-lead.

Our RS-232 devices help you increase security and safety in your factory and automation control applications.

For your industrial PC, programmable logic controller or other factory automation and control designs, our RS-232 devices have International Electrotechnical Commission electrostatic discharge protection as high as 15 kV on all pins, to protect against electrostatic discharges encountered during handling and assembly. Operating temperatures from –40°C to 85°C and 0°C to 70°C – with even wider ranges in our automotive-qualified (-Q1) (–40°C to 125°C) and Enhanced Product (-EP) (–55°C to 125°C) devices – enable protected, secure communication.

Featured resources

  • TIDA-00163 – Isolated RS-232 to UART Converter Reference Design
  • TIDA-00540 – RS-485 / RS-232 Multiprotocol Transceiver Reference Design
  • TIDA-00557 – RS-232 Modem Interface Module for Protection Relay, IED, and Substation Automation Reference Design

Achieve fast data speeds while reducing power consumption in your wired networking designs

For your edge router, small business switches or other wired networking designs, communicate with other peripherals at the data rates you need, with devices that have speeds ranging from 7 kbps to 1 Mbps. Even at these fast speeds, it is still possible to reduce power consumption through our power-down features (power down, auto power down and auto power down plus) and wide availability of supply voltages (2.5 V to 12 V).

Featured resources

Design & development resources

Evaluation board
TRS3122E: RS-232 transceiver BoosterPack™ Plug-in Module

The BOOSTXL-RS232 is a BoosterPack™ Plug-in Module for a TI LaunchPad™ Development Kit. The BOOSTXL-RS232 enables quick RS-232 prototyping with the TRS3122E, the industry’s first 1.8-V inductor-less low-power RS-232 transceiver. The board is equipped with a (...)

Evaluation board
TRS3232EIRGT multichannel RS-232 line driver/receiver with ESD protection evaluation module
This evaluation module is used to evaluate the TRS3232E with RGT package. All signals are available through headers and test points. The charge pump output V+ and V- are accessible too. The board interfaces data and control CMOS logic levels on the terminal block to RS-232 levels supporting data (...)
Evaluation board
TRS3122E: 1.8V RS-232 Transceiver Evaluation Module
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 (...)

Reference designs related to RS-232 transceivers

Use our reference design selection tool to find designs that best match your application and parameters.