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EMMC Compatibility with STM32H757XIH6

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JananiRamesh
Associate

‎2025-06-25 9:04 PM

Please suggest recommended values for EMMC for the following parameters:

  1. Max Read/ Write speed supported
  2. What is maximum memory density it can support?
  3. What is the bus width it can support?
  4. Any recommended NAND based EMMC part number of memory density 16GB and 3.3V supply voltage, which performs efficiently with STM32H757XIH6?
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KDJEM.1
ST Employee

‎2025-06-30 8:05 AM - edited ‎2025-07-09 7:30 AM

Hello @JananiRamesh and welcome to the community;

 

The maximum frequencies depend on e•MMC bus speed modes (SDR, DDR, HS200) and signal voltage as mentioned in reference manual and datasheet

KDJEM1_0-1751294687168.png

KDJEM1_1-1751295066880.png

 

KDJEM1_2-1751295105386.png

In case of eMMC, there is no constraint on the memory size.

For an e•MMC, 1-bit (SDMMC_D0), 4-bit (SDMMC_D[3:0]) or 8-bit (SDMMC_D[7:0]) data bus widths can be used.

It is recommended to select an eMMC that complies with the Embedded MultiMediaCard System Specification Version 4.51.

KDJEM1_0-1751295909289.png

Thank you.

Kaouthar

 

 

 

 

 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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KDJEM.1
ST Employee

‎2025-06-30 8:05 AM - edited ‎2025-07-09 7:30 AM

Hello @JananiRamesh and welcome to the community;

 

The maximum frequencies depend on e•MMC bus speed modes (SDR, DDR, HS200) and signal voltage as mentioned in reference manual and datasheet

KDJEM1_0-1751294687168.png

KDJEM1_1-1751295066880.png

 

KDJEM1_2-1751295105386.png

In case of eMMC, there is no constraint on the memory size.

For an e•MMC, 1-bit (SDMMC_D0), 4-bit (SDMMC_D[3:0]) or 8-bit (SDMMC_D[7:0]) data bus widths can be used.

It is recommended to select an eMMC that complies with the Embedded MultiMediaCard System Specification Version 4.51.

KDJEM1_0-1751295909289.png

Thank you.

Kaouthar

 

 

 

 

 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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