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ST Community Manager
August 22, 2026
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Does the 6�6 mm package of STM32N6 support the SDMMC controller?

  • August 22, 2026
  • 5 replies
  • 9 views

Hi everyone,

I am checking the STM32N6 series package options and I would like to confirm one point.

Does the 66 mm package of the STM32N6 series expose the pins required to use the SDMMC controller?

I understand that SDMMC support may depend not only on the MCU series, but also on the specific package and pin availability. I have seen SDMMC listed in the device features, but I am not sure whether it is actually usable on the 66 mm package.

Specifically, I would like to know:

  1. Is SDMMC available on the STM32N6 66 mm package?
  2. If yes, does it support a practical SD/eMMC interface, such as 4-bit mode?
  3. Are there any package or pin-mux limitations I should be aware of?

Any confirmation from someone who has checked the datasheet/pinout or used this package would be appreciated.

Thanks!

Best answer by mƎALLEm

Hello  and welcome to the ST community,

The answer to that kind of question could be found in the datasheet:

6×6 mm package means: VFBGA169 package:

7ed81519-7bc3-fe93-dd60-77a664c3c256.png

 

01af1861-b8ec-b654-eabb-50a11895b2d1.png

 

f7bf46a6-178b-bb65-0a0e-917dd5462020.png

So that depends on the pinout configuration:

d5a94ab8-c84e-c0e3-5009-44013cc6bb89.png

xxxH3Q: no SDMMC interface

xxxH3QG: has two SDMMC interfaces

Please refer to the reference manual for SDMMC details and the Errata Sheet for the limitations of the product.

Hope that helps.

 

5 replies

ST Migration account
ST Community Manager
August 22, 2026

Thank you for the clarification.

Actually, I found that the xxxH3QG package seems to be out of stock at the moment.

Could you please also let me know when this package is expected to become available again, or if there is any estimated restock schedule?

Thanks!

This account posts content from May 22 – Jun 9 that was not included in the community migration.
ST Migration account
ST Community Manager
August 22, 2026

Thank you, understood.

I will check the availability question with the local FAE/sales team.

This account posts content from May 22 – Jun 9 that was not included in the community migration.
mƎALLEm
ST Technical Moderator
August 27, 2026

So please mark my first post as solution as your original question has been answered.

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
mƎALLEm
ST Technical Moderator
August 27, 2026

 wrote:

Thank you for the clarification.

Actually, I found that the xxxH3QG package seems to be out of stock at the moment.

Could you please also let me know when this package is expected to become available again, or if there is any estimated restock schedule?

Thanks!


I can't answer that question. You can ask that question to your local FAE/sales. The community is focused on technical questions not sales oriented questions.

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.
mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
August 27, 2026

Hello  and welcome to the ST community,

The answer to that kind of question could be found in the datasheet:

6×6 mm package means: VFBGA169 package:

7ed81519-7bc3-fe93-dd60-77a664c3c256.png

 

01af1861-b8ec-b654-eabb-50a11895b2d1.png

 

f7bf46a6-178b-bb65-0a0e-917dd5462020.png

So that depends on the pinout configuration:

d5a94ab8-c84e-c0e3-5009-44013cc6bb89.png

xxxH3Q: no SDMMC interface

xxxH3QG: has two SDMMC interfaces

Please refer to the reference manual for SDMMC details and the Errata Sheet for the limitations of the product.

Hope that helps.

 

To give better visibility on the answered topics, please click "Best answer" on the reply which solved your issue or answered your question.