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mycodeworksIdontknowwhy
Visitor II
March 5, 2026
Solved

STM32G473 FDCAN pinout contradiction

  • March 5, 2026
  • 1 reply
  • 130 views

Same issue reported in 2020: https://community.st.com/t5/stm32-mcus-products/stm32g473-fdcan-pinout-contradicting/td-p/224770.

As of DS12712 Rev 5, Table 13 Alternate Functions has PB10 and PB11 mis-labeled as FDCAN3_RX and FDCAN3_TX respectively.

Under AF11, PB10 and PB11 are not available as FDCAN3_RX and FDCAN3_TX.

Best answer by Igor Cesko

  Hello,

 I am confirming that there is mistake in Table 13. Alternate function : the PB10/PB11 shoud not have FDCAN functionality. this mistake will be corrected in next datasheet revision. 
 "Table 12. STM32G473xB/xC/xE pin definition" is correct - there is no FDCAN functionality for PB10/PB11.

Regards

                        Igor

1 reply

mƎALLEm
mƎALLEm
Technical Moderator
March 5, 2026

Hello,

I will check and get back to you.

"To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."
Igor Cesko
Igor CeskoBest answer
ST Employee
March 5, 2026

  Hello,

 I am confirming that there is mistake in Table 13. Alternate function : the PB10/PB11 shoud not have FDCAN functionality. this mistake will be corrected in next datasheet revision. 
 "Table 12. STM32G473xB/xC/xE pin definition" is correct - there is no FDCAN functionality for PB10/PB11.

Regards

                        Igor

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