AnsweredAssumed Answered

Need details about STM32 I/Os

Question asked by RAMAMOORTH R on May 24, 2017
Latest reply on May 25, 2017 by RAMAMOORTH R

For my design i am already using STM32F429BI--LQFP208 package, Now i am looking to replace this with STM32F777BI-LQFP208, both are pin compatible..

 

Question: In the data sheet of STM32F777BI Its mentioned that GPIO'S=159 in the page number 17,but in STM32F429BI Its mentioned that GPIO'S=168 in page number 16,so what is the difference.STM32F777BI_PAGE_NUMBER_17

The above one is STM32F777BI,

http://www.st.com/content/ccc/resource/technical/document/datasheet/group3/8a/34/ed/7e/4c/04/4b/7a/DM00225424/files/DM00… 

The above one is STM32F429BI,

http://www.st.com/content/ccc/resource/technical/document/datasheet/03/b4/b2/36/4c/72/49/29/DM00071990.pdf/files/DM00071990.pdf/jcr:content/translations/en.DM00071990.pdf

 

BUT in the front page of the datasheet -product description its mentioned i/o's 168 in both of the data sheet

 

 

 

 

and also in the ST.COM  its mentioned i/o's 168 I/O'S

 

 

 

 

 

 

So my question is what is this difference,and what are all  the 9 pins in STM32F777BI  which is not GPIO..

please answer this query....

Outcomes