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ST Community Manager
August 22, 2026
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STM32 interface with eMMC

  • August 22, 2026
  • 3 replies
  • 48 views

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Hi,

We are currently developing board using the STM32F765 microcontroller and eMMC memory (part numbers: MX52LM08A11XVI and IS21ES08GA-JCLI) via the SDMMC interface in STM32Cube.

Can you help us determine if the MX52LM08A11XVI and IS21ES08GA-JCLI can interface with the STM32F765 using the SDMMC peripheral?

 

Thank you

Best answer by KDJEM.1

Hello  ;

 

To check if the memory is supported by the SDMMC you need to verify that the memory is supported by the MultiMediaCard System Specification Standard.

For example according the STM32F765 reference manual; the SDMMC in this STM32 complies with MultiMediaCard System Specification Version 4.2.

41d3ef13-d214-9797-23da-8f79e35ab35e.png

 

Thank you.

Kaouthar

3 replies

KDJEM.1
KDJEM.1Best answer
ST Technical Moderator
August 22, 2026

Hello  ;

 

To check if the memory is supported by the SDMMC you need to verify that the memory is supported by the MultiMediaCard System Specification Standard.

For example according the STM32F765 reference manual; the SDMMC in this STM32 complies with MultiMediaCard System Specification Version 4.2.

41d3ef13-d214-9797-23da-8f79e35ab35e.png

 

Thank you.

Kaouthar

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KDJEM.1
ST Technical Moderator
August 22, 2026

Hello  and welcome to the community;

 

According to the reference manual,  the version of the SDMMC supports in STM32F765 only one SD/SDIO/MMC4.2 card at any one time and a stack of MMC4.1 or previous.

32f8339c-f183-c4be-edf1-27ad602c4091.png

Thank you.

Kaouthar

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.
ST Migration account
ST Community Manager
August 22, 2026

Hi Kaouthar,

We only use one eMMC IC: either the MX52LM08A11XVI or the IS21ES08GA-JCLI. Could you please help me check if these two eMMCs are compatible with the STM32F765?

Thank you

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