Update: The PIC18Q20 series devices discussed in this post are now available! Visit Microchip's product page for more info.
Microchip recently posted a product brief to their website with little fanfare introducing a new family of PIC18 devices which will be their first to include I3C support.
The family features 6 device variants scaling programing memory, SRAM, pin count / package size, and interestingly enough, the number of I3C peripherals – the larger devices have 2 x I3C peripherals.
|I3C Peripheral Count
It's worth noting that these devices only support I3C Target role – they cannot behave as controllers on the I3C bus. That said, I believe these microcontrollers will be the foundation of many of the first I3C Target custom applications. Another interesting feature of these microcontrollers is that they have Multi-Voltage IO Pins, allowing I3C to operate down to 1.0V, with other pins operating at a more traditional range of 1.62V- 5.5V at the same time. The colorful pin diagram below does a great job of showing the different power domains without needing to look it up in tables.
Pinout diagram from the PIC18-Q20 Family Product Brief.
I'm personally excited to see I3C start showing up in Microchip's catalog, and even more so excited to see it show up in smaller / more utilitarian 8-bit microcontrollers. Up till now, the vast majority of I3C peripherals have been in Cortex-M23 and Cortex-M33 devices which are an entirely different beast.
All of the details are now publicly available on Microchip's website. Furthermore, Microchip and Binho have partnered to offer 45-day access to our I3C Basic Protocol Analyzer Plugin included with the purchase of the PIC18F16Q20 Curiosity Nano Evaluation Kit. Learn more about it here.
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