03 Aug 2015 | Geneva

New Safety-Documentation Package for STMicroelectronics STM8A Automotive Microcontrollers Streamlines ISO 26262 Certification

Geneva / 03 Aug 2015

STMicroelectronics has published a safety manual and FMEDA1 document that help streamline ISO 26262 functional-safety certification up to ASIL-B for systems containing its STM8AF automotive microcontrollers.



With valuable features including CAN and LIN drivers, touch-sense/LCD-control capability, ST’s AEC-Q100 qualified STM8AF series is a popular and economical choice for body and infotainment applications such as seat adjusters, instrumentation, and lighting controllers. Recognizing that reliable operation enhances comfort and driver concentration for a better, safer user experience, Tier 1 equipment suppliers now tend to design these systems to meet ISO 26262 functional-safety standards at ASIL2 A or B. ST’s new STM8A-SafeASIL safety tools show designers how best to work with the microcontroller to achieve the desired safety integrity level, thereby helping ensure successful certification.

The safety manual has been developed with assistance from YOGITECH, a leader in providing functional safety solutions. It provides guidance for hardware design and software integration, including a list of tips, to help engineers ensure correct and safe operation of the STM8AF and so eliminate system failures due to the microcontroller.

The accompanying FMEDA describes the failure probabilities of STM8 IP blocks to help designers ensure their applications achieve the desired system safety integrity.

This safety documentation package is the first in the industry for 8-bit microcontrollers. The safety manual is available immediately to STM8A customers, free of charge, at http://www.st.com/stm8safety, while the FMEDA, also free of charge, is available conditional upon signing a Non-Disclosure Agreement (NDA).

For further information please visit: http://www.st.com/stm8safety

1FMEDA: Failure Modes, Effects, and Diagnostic Analysis
2ASIL: Automotive Safety Integrity Level. ASIL A is the lowest level for systems where safety standards are deemed applicable. Vehicle-safety equipment such as ABS, airbags, electric steering, engine management and Advanced Driver-Assistance Systems (ADAS) are typically certified to higher safety-integrity levels up to ASIL D.