2025-11-05 10:36 PM
I'm looking for an ST microcontroller that can do I2S receiving while remaining low power, presumably by keeping the core asleep and using DMA to copy I2S chunks to a buffer. I think I saw a video demo of this at some point somewhere on the website, but now I cant find it.
When I say low power, I mean <1mA, preferably <200uA if possible. I assume this would be something like an M0 or M4 core.
2025-11-05 10:49 PM
Look at L0 series and check from DS and RM, that I2S and DMA can work at low power mode.
2025-11-05 11:02 PM
Hello @bb00 and welcome to the Commuinty,
I recommend using the MCU Finder tool to refine your selection and choose the most suitable MCU:
2025-11-05 11:16 PM - edited 2025-11-05 11:16 PM
Thanks, but this tool isn't detailed enough for what I want - I need to sort by the run current of the I2S peripheral (also having this as a download tool to be set up seems very odd)
2025-11-06 1:39 AM
@bb00 wrote:(also having this as a download tool to be set up seems very odd)
There is also an online selector:
https://www.st.com/content/st_com/en/stm32-mcu-product-selector.html
Distributors also often have parametric search tools ...