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. This device is clearly designed for usage with upcoming DDR5 DIMMs, but there's also other many other situations in which an interface IC like this could be utilized. Don't be fooled by the manufacturer part number for this device -- at first, I thought that the inclusion of "I3C" in the part number meant this was just one of a family of I3C interface devices, but it turns out that this was just a conveniently numbered existing product family of I2C muxes/switches. That said, I'm still hoping this is just the first of many to come to the market.
All of the details can be found including the datasheet can be found on the product page. At the time of writing, Mouser shows tens of units will be in stock in May of this year, and 100k+ units arriving in January 2023 (55 weeks from the time of writing, oh how I cannot wait for this supply chain situation to be behind us).
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The MIPI Alliance will be hosting the next I3C Interop Workshop on 13-14 June in Munich, Germany. This workshop will be open to non-members for the first time!
The Renesas F0443 is a Dual Matched Broadband RF digital variable gain amplifier designed for use in diversity/MIMO receivers. This is quite a deviation from the typical applications of I3C-capable devices.
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.
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