MCU 150C

[SSSL]

I have been developing a system using an SMT32L476 but it is only rated to 125C .

I'm looking for a temperature range of 150C .  Its is desing into a piece of test equipment that goes within a thermal Chamber and cna overshoot ot 130-50 before settling at 125C 

Anyone any idea what STM have that has similar functionality to the above ?

Thanks 

[Tesla DeLorean]

No, you're deep in thermal migration territory.

Definitely no STM32 parts, and perhaps at top edge of the Automotive parts.

https://www.st.com/en/applications/automotive.html

https://www.st.com/resource/en/brochure/st12081_brautomotive1018_lr.pdf

[SSSL]

Trouble seems to be that there is an element of self heating and the internal temp sensor reads 130c above that we lose USB comms .

[Tesla DeLorean]

What's your clock source?

Perhaps beyond the range of the crystal and almost certainly XO / TCXO, and several things that might have EEPROM holding characteristics/calibration

Conversation you might was to have with local sales office and FAE / Support Engineer.

Might suggest opening a support ticket.  https://www.st.com/content/st_com/en/support/support-home.html

[SSSL]

Hi .. 

We can see the at the micro is still executing code as we put in a simple toggle LED on every loop and added a time out so our issue is primarily with the comms side. We are considering a Peltier device as cooling but that has it problems too with heat dissipation at a high ambient . 

Thanks for the links to the FAEs I couldn't find them on the STM website which is one of the reasons I started  the chat .