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kent gu
Associate III
February 23, 2023
Solved

STM32F103 work temperation at -55C

  • February 23, 2023
  • 3 replies
  • 2166 views

Hi,

Now we want to use STM32F103 at -55C ambient temperature, MCU

data sheet say that it work at -40C as datasheet, storage temperature is -60C.

My question is that,

-If MCU is powered up at -55C, what will be different with

>=-40C? Such as clock not stable,

-Do you have any -55C mcu as STM32F103 function for

recommendation?

Best Regards,

Kent

This topic has been closed for replies.
Best answer by Peter BENSCH

So far, no derivative of the STM32 is guaranteed to operate at a temperature lower than -40C. A statement about the behaviour at lower temperatures than the minimum operating temperature (most have -40C, a few -20C or -10C) can therefore not be made and one must assume that in extreme cases the STM32s will not work at all.

If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

Regards

/Peter

3 replies

Peter BENSCH
Peter BENSCHBest answer
ST Technical Moderator
February 23, 2023

So far, no derivative of the STM32 is guaranteed to operate at a temperature lower than -40C. A statement about the behaviour at lower temperatures than the minimum operating temperature (most have -40C, a few -20C or -10C) can therefore not be made and one must assume that in extreme cases the STM32s will not work at all.

If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

Regards

/Peter

In order 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.
AScha.3
Super User
February 23, 2023

-55° is ->

  • Full Military: −55 °C to 125 °C

so look for military spec. , Maxim Integrated has this, maybe stm has also.

example from Ti : MSP430F2619SPM , -55°C ~ 150°C

https://www.digikey.de/en/products/detail/MSP430F2619SPM/296-28280-ND/2353501

but about 120 € per piece ! so you have to pay for your "extras" .... :)

did a search on digikey

https://www.digikey.de/en/products/filter/embedded/microcontrollers/685?s=N4IgjCBcoEwKwyqAxlAZgQwDYGcCmANCAPZQDaIMALAMwAMdER1MAnHQOwjNVtivdKvVjDqCWrGoh5s4NccLgAOEAF0iABwAuUEAGUtAJwCWAOwDmIAL42gA

found only 1 from STM : SPC58EG80E5QEC0X

https://www.digikey.de/en/products/detail/stmicroelectronics/SPC58EG80E5QEC0X/16588292

If you feel a post has answered your question, please click on " Best Answer ".
kent gu
kent guAuthor
Associate III
February 23, 2023

It is helpful. TKS~ Kent