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Associate III
October 1, 2025
Question

MCU Selection High Speed SPI and QSPI

  • October 1, 2025
  • 1 reply
  • 194 views

Hello Team,

We are Looking to select MCU Which has High Speed SPI and QSPI in a Single Device ,

High Speed SPI - 50 Mbps to 90 Mbps ( One channel ) to interface External Ethernet Controller 

QSPI  - ( One channel ) -  to interface with External Motion Unit

Both above interface work Independently and simultaeneously. 

Device from MCU Series U5 and H5 Would be preeferable. 

However , Our application is not batttery powered , so no power saving Headache.

 

1 reply

Andrew Neil
Super User
October 1, 2025
A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
bsutharAuthor
Associate III
October 2, 2025

Hello Andrew,

Thanks for Update.

From the Tools , I found Two series which matches considering M-33 Secure core. I..e STM32H5 and STM32U5.

Since , application is for industrial Automation side , Not Battery Power , So STM32H5 would be fine.

Same time, I do not Higher Speed. Of Course , Cost is matter.    

Also, not sure , Whose cummunity Support is better ?

What is your suggestion on this ?