STM32F301R8 datasheet has conflicting data for I2S3_SD and I2S3ext_SD pins on PB4/PB5

[Michael Moon]

Posted on December 15, 2017 at 08:28

I'm looking at the STM32F301R8 datasheet (DocID 025146,

https://www.st.com/resource/en/datasheet/stm32f301r8.pdf

Rev.7)

On page 41 it lists PB4/AF6=I2S3ext_SD and PB5/AF6=I2S3_SD

On page 45 it lists PB4/AF6=I2S3_SD and PB5/AF6=I2S3ext_SD

Which is correct?

Apparently the 'remove formatting' button doesn't work, fixed datasheet link

#stm32f301 #stm32f3 #datasheet-error

[Imen.D]

Posted on December 15, 2017 at 09:43

Hello ,

Thank you for bringing this to our attention.

You care correct, I confirm the error you are reporting about the assignment of PB4 and PB5.

Indeed, the Table 13. STM32F301x6/8 pin definitions (page 41) is correct  and we should have:

• PB4 : SPI3_MISO / I2S3_ext_SD
• PB5: SPI3_MOSI / I2S3_SD

We raised this typos internally to correct the 'Alternate functions for Port B' table in all STM32F3 datasheets in coming release.

Best Regards

Imen