Renesas Releases Four I3C Bus Extension Products

June 5, 2020 Perry Cohen

Renesas released four new I3C Basic bus extension products for control plane designs across a variety of applications, including data center and server applications. The four mentioned extension products include the IMX3102 2:1 bus multiplexer, IMX3112 1:2 bus expander, and IXP3114 and IXP3104 1:4 general-purpose IO expander. They support up to 12.5MHz and integrated thermal sensor capabilities.

They were designed fir engineers implements I3C basic as a system management bus. The integrated thermal sensor makes it possible for better integration of thermal management into the design itself.

"The complexity of intelligent platform management in modern data center equipment has finally outstripped the capabilities of decades-old interfaces like I2C and SMBus," said vice president of  data center business division at Renesas Rami Sethi, in a press release. "We are excited to offer an entire lineup of I3C bus extension devices for large-scale, high-speed control plane designs that enable sophisticated capabilities for environmental control, advanced telemetry, security, and fault recovery."

Additional features per the press release include:
• Two-wire programmable I2C or I3C Basic bus serial interface
• Single device load on the host bus
• Single 1.8V input power supply
• Integrated temperature sensor accuracy: 0.5°C with 0.25°C resolution
• Industrial temperature range: -40°C to 125°C
• Packet error check and parity error check functions
• Bus reset and bus clear functions
• In-band interrupt
• Programmable I2C, I3C Basic bus address
• 2mm x 3 mm, thermally enhanced 9-pin PSON-8 package

For more information, visit

About the Author

Perry Cohen

Perry Cohen, associate editor for Embedded Computing Design, is responsible for web content editing and creation in addition to podcast production. He also assists with the publication’s social media efforts which include strategic posting, follower engagement, and social media analysis. Before joining the ECD editorial team, Perry has been published on both local and national news platforms including (Phoenix), (Phoenix),, Cronkite News, and MLB/MiLB among others. Perry received a BA in Journalism from the Walter Cronkite School of Journalism and Mass Communications at Arizona State university. He can be reached by email at <a href=""></a>. Follow Perry’s work and ECD content on his twitter account @pcohen21.

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