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vijayajangam
Associate III
June 17, 2026
Solved

Can any STM32 microcontroller directly interface with DDR memory such as DDR2/DDR3/DDR4?

  • June 17, 2026
  • 3 replies
  • 95 views

We are designing an STM32-based SOM and want to know whether STM32H7 controllers support DDR memory, or if DDR support is available only in STM32MP series. Please suggest compatible STM32 controllers and reference designs for DDR interfacing.

Best answer by mƎALLEm

Hello,

If you mean by the DDR interface in the STM32MPxx series, that’s not available on any STM32 MCUs. It’s only available on STM32 MPUs.

So the answer is no.

3 replies

Andrew Neil
Andrew Neil
Super User
June 17, 2026

 

 

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    Lead III
    June 17, 2026

    Not PC DDR.
    But some STM32 MCUs support external RAM with quad/octo/dual quad spi. Some quad/octo/dual quad spi memories support DDR mode. We use that with a H7.

    "Kudo posts if you have the same problem and kudo replies if the solution works.Click ""Accept as Solution"" if a reply solved your problem. If no solution was posted please answer with your own."
      mƎALLEm
      mƎALLEmBest answer
      ST Technical Moderator
      June 17, 2026

      Hello,

      If you mean by the DDR interface in the STM32MPxx series, that’s not available on any STM32 MCUs. It’s only available on STM32 MPUs.

      So the answer is no.

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