Microchip ATA6571 Handleiding

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ATA6571 Safety Manual

Introduction

This manual discusses the requirements for the use of the ATA6571 devices as a Safety Element out of Context

(SEooC) in functional safety-relevant applications and provides guidelines for the proper use of ATA6571 devices in

ASIL B applications. It will guide the System Integrator with the necessary steps to integrate the product into their

application.

The System Integrator shall fulfill all the Assumptions of Use (AoU) listed in ,7. System Integrator Responsibilities

and for the selected diagnostics, all the Hardware Safety Requirements (HWSR) and Software Safety Requirements

(SWSR) listed in , and ,5. Hardware Requirements on System Level6. Software Requirements on System Level

respectively. The AoU, HWSR and SWSR were assumed to be fulfilled when analyzing the failure rates and Fault

metrics in the provided FMEDA. The AoU are summarized in Section 11. Assumptions of Use (AoU).

If one or more AoU, HWSR or SWSR are not fulfilled, the System Integrator shall show that an alternative solution is

similarly efficient concerning the safety requirement in question or show that the particular issue is irrelevant for their

application (for example, the module is not used).

If these alternatives are not possible, the System Integrator shall estimate how much the failure rate increases and

the failure metrics decrease due to the deviation. Otherwise, the FMEDA provided with the ATA6571 devices is not

valid.

This Safety Manual refers to the International Standard ISO 26262, 2

nd Edition 2018.

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© 2021 Microchip Technology Inc. Safety Manual50003118A-page 1

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