Renesas has a rich interface history dating back to the 1970s. Renesas' interface devices can enhance serial ports with IEC 61000 enhanced ESD protection, overvoltage protected transceivers, high-speed transceivers, low voltage and low power, low cost transceivers, and multiprotocol configurations. Our RS-485, RS-422 and RS-232 isolated and non-isolated transceivers are used by the biggest names in industrial process control, including data communication for Industrial Internet of Things (IIoT) networks; telecommunications; and hundreds of different applications.

Documentation & Downloads

Title Other Languages Type Format File Size Date
Application Notes & White Papers
An Overview of Electromagnetic and Lightning Induced Voltage Transients Application Note PDF 677 KB
R15AN0002: RS-485 Transient Protection in Industrial DC-Supply Buses Application Note PDF 178 KB
RS-485 Transceiver Tutorial 简体中文 White Paper PDF 246 KB
AN1991: Isolating RS-485 Interfaces with High-Speed Digital Optocouplers Application Note PDF 513 KB
RS-485 Isolator Raises the Bar for Bus Node Designs White Paper PDF 437 KB
Boost PROFIBUS RS-485 Robustness with GMR Isolation White Paper PDF 307 KB
AN1990: RS-485 Transceivers in J1708 Physical Layer Applications of Heavy Duty Vehicles Application Note PDF 826 KB
AN1988: Isolated RS-485 Repeaters, the Backbone of Industrial Long Haul Networks Application Note PDF 769 KB
AN1987: RS-485 External Fail-Safe Biasing for Isolated Long Haul Buses Application Note PDF 443 KB
AN1986: External Fail-Safe Biasing of RS-485 Networks Application Note PDF 582 KB
AN1985: Transient Protection for the Standard RS-485 Transceiver: ISL3152E Application Note PDF 335 KB
AN1989: RS-422 vs RS-485: Similarities and Key Differences Application Note PDF 440 KB
AN1980: Ground Potential Differences: Origin and Remedies Application Note PDF 375 KB
AN1978: Surge Protection for Intersil's Standard RS-485 Transceivers Application Note PDF 369 KB
AN1976: Important Transient Immunity Tests for RS-485 Networks Application Note PDF 338 KB
AN1979: Surge Protection simplified with Intersil's Overvoltage Protected (OVP) Transceivers Application Note PDF 500 KB
AN1977: Transient Voltage Suppressors: Operation and Features Application Note PDF 365 KB
AN1973: GMR Isolators in IEC61010-1 Edition 3 Systems Application Note PDF 213 KB
AN1971: GMR In Isolation Application Note PDF 218 KB
AN1972: Giant-Magneto-Resistance as Digital Isolation Technology Application Note PDF 296 KB
Other
R15ZZ0002: Calculating the Power Dissipation of an RS-485 Driver Others PDF 150 KB
R15ZZ0001: Calculating the Power Dissipation of an RS-422 Driver Others PDF 165 KB
TB506: Functional Principles of RS-485 Drivers and Receivers Others PDF 156 KB
TB509: Detecting Bus Signals Correctly with Failsafe Biased RS-485 Receivers Others PDF 240 KB
TB511: The Unit Load Concept Others PDF 253 KB
TB510: Transmitting Full-Duplex Data over Single Twisted Pair Cable Others PDF 500 KB