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STM32F4xx - does going up a package pin count impact pin AF mapping?

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PHolt.1
Senior III

‎2025-12-06 10:23 AM - last edited on ‎2025-12-08 3:18 AM by

I think it doesn't have an impact and you just get extra pins (e.g. extra SPI controllers becoming accessible) if going say 100 to 176. But it's not clear...

IOW, will existing code run exactly as before?

Isn't the silicon identical and they merely bond out the extra pins on the bigger packages?

 

 

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mƎALLEm
ST Employee
In response to PHolt.1

‎2025-12-08 7:57 AM

Ok, please close that thread and think about that new question we are happy to help you ;).. 

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