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BrolyChen
Visitor II
August 22, 2026
Solved

maximum clock frequency for FMC when interfacing SDRAM on STM32H7?

  • August 22, 2026
  • 1 reply
  • 46 views

Hello everyone, may I ask what is the maximum clock frequency supported when the STM32H7's FMC peripheral controls SDRAM? Can it work stably if the frequency exceeds 200MHz, for example, 240MHz?

 

26a81b66-e483-90e8-6381-a4fbfe0f2348.png

 

Thank you very much.?

Best answer by mƎALLEm

Hello,

That depends on which STM32H7 you are talking about. You should always provide the MCU part number you are referring tor.

For STM32H74x , it's provided in the RM0433 / Table 55:

5abcb1a0-eef8-0094-2d1a-991e8de8e75e.png

1 reply

mƎALLEm
mƎALLEmBest answer
ST Technical Moderator
August 27, 2026

Hello,

That depends on which STM32H7 you are talking about. You should always provide the MCU part number you are referring tor.

For STM32H74x , it's provided in the RM0433 / Table 55:

5abcb1a0-eef8-0094-2d1a-991e8de8e75e.png

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