Product Tree

RS-485/RS-422 Overview

Reliable, protected devices for long networks, high-data rates and noisy environments

Basic transceivers

3.3-V to 5-V transceivers optimized to meet the needs of cost-sensitive applications

High-ESD transceivers

Devices designed with ESD in mind: up to +30kV IEC 61000-4-2 contact discharge protection and greater than +30kV HBM protection

Fault-robust transceivers

Rugged devices with high bus fault-protection and wide common-mode voltage, designed to perform in harsh industrial environments

Isolated transceivers

Full-duplex and half-duplex isolated RS-485 transceivers with integrated capacitive isolation to provide 2.5-kVrms of isolation between the bus-line transceiver and the logic-level interface

Featured products



5-V, half-duplex RS-485 transceiver with up to 250 Kbps data rate



70-V fault-protected, 3.3-V to 5-V RS-485 transceiver with up to 1 Mbps data rate


3.3-V, half-duplex RS-485 with IEC ESD protection and up to 50 Mbps data rate

Technical resources


Reference designs

On-demand RS-485 training, including overviews and in-depth presentations.

Watch and learn

Reference design

WEBENCH Interface Designer

Complete board-and system-level reference design circuits to help you quickly evaluate and customize your system.

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Online support

Online support

Ask questions, share knowledge and help solve problems with fellow engineers in TI’s E2E™ Community

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Blog posts

Online support

Read about a wide variety of RS-485 system design topics in TI’s blogs.

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Texas Instruments offers the most comprehensive RS-485 and RS-422 portfolio in the industry, meeting the RS-485 and RS-422 standards at 5V or 3.3V supply voltage and in half or full duplex modes. Whether designing for long networks or for high data rates, our RS-485 transceivers and RS-422 transceivers are reliable in high noise environments and give you the most robust IEC61000-4-2 ESD protection as well as IEC61000-4-4 EFT performance. The transceivers are ideal for many industrial applications, including motor drive and control, building and factory automation, metering and power infrastructure, and security systems.