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Any one can help to find the ST micro MCU part no based on the SMD Chip marking code?

mossundar
Associate

STM MCU.jpg

3 REPLIES 3

You're imagery is far from clear. Perhaps you can enumerate what you think the markings are, or take a better picture in focus or macro mode?

C146 or C14B << These will be the product marking

PH9R << Fab

7B1Z << Package/Test Date

20 / 24-pin ? Identify pin level connectivity to power, ground, GPIO, UART, programming headers.

Sure it's an MCU, not an IMU or anything else? What's the context?

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Michal Dudka
Senior III

Probably STM32C011F6 ... because it is image of Discovery kit with STM32C011F6 
https://www.st.com/en/evaluation-tools/stm32c0116-dk.html

Try to find the schematics for your board and you would know...

BTW: what an "ugly looking board" is this? It looks like "hand soldered" (too much solder on MCU pins, cap is not straight...).

If I count the "MCU pins": 20, so as LQFP20 or QFN20: which STM MCU has this package? Not so much.

If so, it could be just a "tiny" MCU, e.g. a Cortex-M0/M0+.

Yes, it looks like the:
STM32C0116-DK - Discovery kit with STM32C011F6 MCU - STMicroelectronics
but hard to imagine that the soldering of STM boards is so "bad".

Where did you get the board from?