Pinout STM32H743XI: function of balls B6 and F2 - which is VSS, which is NC?

[SSchm.4]

Hello!

For a redesign of an already existing product we're using an STM32H743XI, which is a TFBGA240+25.

The BGA balls "B6" and "F2" are documented in two different ways in the datasheet and in CubeMX, see also attached picture.

• Datasheet "DS12110" (version 5), page 55: ball B6 = VSS, ball F2 = NC
• CubeMX 5.3.0 (most recent version): ball B6 = NC, ball F2 = VSS

Can you tell me which one is the correct pinout?

Datasheet: https://www.st.com/resource/en/datasheet/stm32h743xi.pdf

CubeMX: https://my.st.com/content/my_st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-configurators-and-code-generators/stm32cubemx.html

Kind regards,

Stefan

[Tesla DeLorean]

I think the Cube map is wrong, the STM32H745 data sheet is more informative.

https://www.st.com/resource/en/datasheet/stm32h745ig.pdf

[SSchm.4]

Thank you for pointing to the 745ig datasheet. I take the datasheet information, and will ignore the CubeMX pinout, as I think it is just plain wrong.

Funny side note: It seems that there's a *third* version of the pinout of balls B6/F2 used in the Eval-Boards.

[Tesla DeLorean]

Some of the EVAL were designed for dual core and DSI operation, several years ago.

@STOne-32​ can you check the data sheet and CubeMX databases with respect to pin naming/usage. Thanks

[Amel NASRI]

Hello,

The datasheet is the reference, the error is on CubeMX side.

It is reported internally.

-Amel