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thomas23
Associate II
February 20, 2021
Solved

STM32G473 I2C2 pinout mistake in Datasheet

  • February 20, 2021
  • 6 replies
  • 2114 views

Hi,

I would like to make a new electronic design with the STM32G473, using I2C2.

But it seems there is a mistake in the datasheet regarding the pinout.

On pin description it says:

PA8 = I2C2 SDA

PA9 = I2C2 CLK

PA10 = I2C2 SMBA

Whereas on Alternate function it says:

PA8 = I2C2 SMBA

PA9 = I2C2 CLK

PA10 = I2C2 SDA

Which one is correct?

If I look on other similar MCUs, I think the second version (Alternate function) is correct, but if I check on CubeMX, it says the same as on pin description.

Thanks for your help!

This topic has been closed for replies.
Best answer by Imen GH

​ Hello @thomas23​ ,

The pin description is the correct one:

PA8 = I2C2 SDA

PA10 = I2C2 SMBA

I will report the error to our team for correction.

Thanks for your contribution

Imen

6 replies

Imen GH
ST Employee
February 22, 2021

​Hello @thomas23​,

I will check and get back to you

Imen

thomas23
thomas23Author
Associate II
February 22, 2021

Ok thanks!

Imen GH
Imen GHBest answer
ST Employee
February 23, 2021

​ Hello @thomas23​ ,

The pin description is the correct one:

PA8 = I2C2 SDA

PA10 = I2C2 SMBA

I will report the error to our team for correction.

Thanks for your contribution

Imen

margce
Associate II
July 26, 2022

This is still an issue even on the latest DS12712 rev4 datasheet available to download. Please be aware!

DOCon.1
Senior
February 8, 2023

Just got bitten by this; request User Manual update please.

KDJEM.1
ST Technical Moderator
April 24, 2023

Hello,

This issue is fixed and the new Datasheet revision is published in the ST website: DS12712 Rev 5.

Thank you.

Kaouthar

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