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August 25, 2026
Question

STM32F767 in SISTEMA / ISO 13849: Where can I obtain FIT, MTTFd or FMEDA data?

  • August 25, 2026
  • 1 reply
  • 6 views

Hello,

 

I am currently performing an ISO 13849-1 assessment and creating a SISTEMA model for a chemical dosing system.

The safety-related control architecture includes a STM32F767BI.

 

I have reviewed:

- STM32F767 datasheet

- STM32F7 Safety Manual (UM2318)

- STM32F7 self-test library documentation

 

The Safety Manual references:

- AN5132 (FMEDA results)

- AN5137 (FMEA results)

 

However, these documents do not appear to be publicly available.

 

I am looking for guidance on the following:

 

1. Is there an official FIT value, failure rate, PFHd or MTTFd available for the STM32F767 family?

2. Are AN5132 and AN5137 available through ST support or under NDA?

 

Thank you.

1 reply

Peter BENSCH
ST Technical Moderator
August 25, 2026

Welcome ​@ds86424, to the community!

The documents in question do indeed require an NDA, which you should initiate through your distributor.

They can also help you obtain the FIT data, alternatively see the article in the Knowledge Base:

Hope that helps?

Regards
/Peter

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