I3C Cafe - Now Brewing: A New Digital Protocol

Welcome to I3C Cafe, the first site dedicated to the exchange of news and information regarding industry adoption of the MIPI I3C® (and subsequently I3C BasicSM) protocol. First released in December 2018, the MIPI Improved Integrated Inter Integrated Circuit (I3C) communication protocol has matured to the point that it's starting to show up in mainstream semiconductors. No longer constrained to FPGA projects with licensed IP blocks, the stage is set for widespread adoption. Sit back, sip your coffee and enjoy the show!


Published on Nov 03, 2023

Renesas Unveils ARM Cortex-M85 Based MCU with I3C Ternary Mode Support

Headlining as the industry's first Cortex-M85 core, this device contains another industry first, details of which are buried a thousand pages deep within the User's Manual

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Renesas Launches PMIC for DDR5 DIMMs With I3C Support

Published on Apr 30, 2022

With I3C being the standard for DDR5 management, it only makes sense that the ecosystem of supporting components also adopt I3C as their primary communication interface.

NXP RT500 & RT600 Crossover MCUs Enable I3C Development Today

Published on Jan 27, 2022

The iMX RT Crossover Microcontrollers are an interesting beast. They've got some interesting bells and whisltes, but the real reason that I'm writing about them today is due to the fact that the RT500 and RT600 series devices feature I3C peripherals.

Diodes Inc. Announces High-Speed I3C 1:2 Mux

Published on Jan 27, 2022

Aside from I3C-capable Controllers and Targets, another category of devices that are imperative for successful and wide-spread industry adoption of the I3C protocol are interface devices such as switches/muxes, buffers/level-shifters, etc. Diodes Inc. recently announced[pdf] their first I3C interface device, the PI3CSW12, a 1:2 Mux/DeMux with Output Enable control signal.

STMicro Sensors with I3C Support Available Now

Published on Jan 27, 2022

While we're eagerly awaiting STMicro to introduce their first micronctroller which features an I3C peripheral, their MEMS sensors team has already launched several devices to mass production. This gives me even more hope that their first micrcontroller with I3C support is just barely over the horizon.

Bosch BMI263 IMU Supports I3C But Is Nowhere To Be Found

Published on Jan 16, 2022

Bosch Sensortec released the BMI263, a 6-Axis IMU, their first I3C compatible device, well over a year ago. They are keen to point out support for I3C all over their product page and marketing materials for the device, unlike some who are somewhat silently adding supporting for I3C. However...

TDK InvenSense IMUs Support I3C DDR Mode

Published on Jan 15, 2022

TDK InvenSense, leaders in the MEMS IMU device category, have already introduced I3C support in several of their devices. Just like IMUs from STMicro, TDK InvenSense took the approach of supporting SPI, I2C, and I3C protocols on their devices, but with a key differentiator...

Have some I3C-related product news to share? Send us a message at i3ccafe@binho.io

I3C Guides & Tutorials

Featured Video
As Microchip gears up to support their first I3C-capable microcontroller, they released this introductory video for newcomings to I3C. It's a fantastic resource for those just getting started.

Additional Resources
This section is frequently updated to point to the most relevent resources regarding learning about I3C.

Webinar Introducing MIPI I3C - the Next Generation Serial Communication BusElektor & MIPI Alliance[Youtube Video]
Enabling Simpler Design with MIPI I3C in Different Equipment ApplicationsMIPI Alliance[Youtube Video]
I3C Frequently Asked QuestionsMIPI Alliance[Webpage]
Three Ways MIPI I3C Improves Board-Level Serial CommunicationMIPI Alliance[Blog Post]

I3C Reference

Already working with I3C? Check out our I3C Basic Protocol Analyzer Plugin for Saleae Logic...

MIPI® and I3C® are registered trademarks owned by MIPI Alliance. I3C BasicSM, Debug for I3CSM, I3C HCISM and DisCo for I3CSM are service marks of MIPI Alliance. I3C Cafe is an independent publication (blog) and is not affiliated with nor sponsored or endorsed by the MIPI Alliance. Saleae® and Saleae Logic® are registered trademarks owned by Saleae Inc.