STM32WL production process

Terry Barnaby · ‎2021-09-08

What is the production process (nm) of the STM32WL MCU's ? We are looking at designing a system that will have to operate in a possible radiation encvironment and the nm size of the process will have a bearing on this.

Bubbles · ‎2021-09-10

Hello Terry,

it's 90nm.

ECC on flash is nice, but for radiation resilience you'd probably want ECC on SRAM as well. Most STM32H7 has that, WL does not.

J.

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Bubbles · ‎2021-09-10

Hello Terry,

it's 90nm.

ECC on flash is nice, but for radiation resilience you'd probably want ECC on SRAM as well. Most STM32H7 has that, WL does not.

J.

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.

Terry Barnaby · ‎2021-09-10

Many thanks for the info. In the application I am looking at the device is mainly asleep and wakes up now and then for a measurement. So the lack of SRAM ECC is probably not so much of a hurdle. Thanks again