Functional Safety for Microchip Products

Functional safety is part of the overall safety of a product that depends on any type of automatic protection. This automatic protection system needs to respond correctly to its inputs and have predictable responses to failure. Software plays a large role in automatic protection systems and adds to the complexity of designing and evaluating the integrity of these safety systems. Microchip proven experience will help you meet functional safety requirements while minimizing cost and development time. The PIC and AVR Functional Safety Ready 8-bit microcontrollers (MCUs) encompass the latest hardware safety features to help you achieve ISO26262, IEC 61508 and IEC 60730 certification and increase reliability and redundancy in your applications.

  • General
  • Automotive
  • Industrial
  • Appliances

Functional Safety Ready

A product that contains the “Functional Safety Ready” designation offers integrated hardware safety features, along with the following support materials: Safety Manual, FMEDA (Failure Modes, Effect, and Diagnostic Analysis) reports, and in some cases, diagnostic software libraries.

Safety Manual

The safety manual offers a detailed description of the various diagnostic mechanisms and provides recommendation on how to use this device for the safest operation

View Example Safety Manual

FMEDA Report

The FMEDA report quantifies the device’s fault modes, thier Falure-In_time (FIT) rate distribution and corresponding detection methods to help create coverage plan.

View Example FMEDA Report

Diagnostic Libraries

Microchip development ecosystem includes TÜV SÜD-certified MPLAB® XC compilers, docements for the MPLAB X Integrated Development Environment (IDE) and MPLAB programmers and debuggers to help you qualify your design for functional safety.

Hardware Features

The hardware safety features are built-in features that include Power-on Reset (POR), Brown-Out Reset (BOR), Windowed Watchdog Timer (WWDT) and Cyclical Redundancy Check(CRD) to improve operational safety and reliability.

Functional Safety Ready

ISO 26262 is the international standard for functional safety of Electrical and/or electronics systems in road vehicles.

This standard encompasses Automotive Safety Integrity Levels (ASILs) for electrical and electronic systems used in series production road vehicles, excluding mopeds.

To meet these rigorous safety requirements, Microchip offers a broad portfolio of functional safety ready PIC® and AVR® microcontrollers (MCUs) that encompasses the hardware safety features and supporting collateral to help you achieve ISO 26262 Automotive Safety Integrity Level (ASIL) B safety certification for your design. You can also achieve higher ASIL C/D safety levels through redundancy (decomposition).

ISO 26262 Functional Safety Package Features

Description Basic Package Starter Package Full Package
ASIL B Ready-Certified FMEDA YES YES YES
ASIL B Ready-Certified Safety Manual YES YES YES
Diagnostic Self-Test Library (includes Source Code) - YES (1) YES(1)(2)
Certificates and Reports - - ASIL B-Ready Certificate and Report
Optional Annual Renewal to Access Updates YES YES YES

Notes:

  1. The software diagnostic library implements a colletion fo diagnostic mechanisms describe in the safety manual. If required, the system integrator must implement the diagnostic mechanisms that the library does not implement.
  2. Certification of the software diagnostic library is expected to be completed in 2022
Part Number Description View Details
Basic Package – Automotive 26262 License - Functional Safety Basic Package View Details
Starter Package – Automotive 26262 License - Functional Safety Starter Package View Details

Functional Safety Ready

IEC 61508 is an international standard for the functional safety of Electrical/ Electronic/ Programmable Electronic (E/E/PE) systems.

This standard encompasses Safety Integrity Levels (SILs) for safety-critical electrical and electronic systems used in industrial applications.

Designing safe and reliable industrial applications to ensure customer safety is critical. To meet these rigorous safety requirements, we offer a broad portfolio of functional safety ready PIC16, PIC18 and AVR microcontrollers (MCUs) that encompasses the hardware safety features and supporting collateral to help you meet the IEC 61508 requirements for your design.

Part Number Description View Details
FBP-AVR-DA-IEC61508 License - Functional Safety Basic Package View Details
FBP-AVR-DB-IEC61508 License - Functional Safety Basic Package View Details
FBP-AVR-DD-IEC61508 License - Functional Safety Basic Package View Details
FBP-MEGAAVR-0-IEC61508 License - Functional Safety Basic Package View Details
FBP-TINYAVR-0-IEC61508 License - Functional Safety Basic Package View Details
FBP-TINYAVR-1-IEC61508 License - Functional Safety Basic Package View Details
FBP-TINYAVR-2-IEC61508 License - Functional Safety Basic Package View Details