Request for Replacement Microcontroller with ECC SRAM and Higher Operating Range

[ManjuMulimani]

I have chosen the STM32F765ZIT7 for my project due to its suitable number of pins and bus interfaces. However, this microcontroller does not support Error Correction Code (ECC) for SRAM. Therefore, I kindly request your recommendation for the best replacement for the STM32F765ZIT7 that includes ECC for SRAM and offers a higher operating temperature range.

Thank you!

[Tesla DeLorean]

There's a tool in CubeMX/CubeIDE to find equivalent / pin compatible parts.

[TDK]

The H7, H5, and U5 families have optional ECC on SRAM.

A few chips in each of those families can go up to 125 C. Same with the other families. Here are a few in the H7 family:

I'd suggest picking the most suitable family, then picking a chip with the package/features and temperature range you want from within that family. The STM32H7 family has the same core (Cortex M7) as the STM32F7 family. Perhaps that's best.