Transcription of Understanding Functional Safety FIT Base Failure Rate ...
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Understanding Functional Safety FIT Base Failure Rate ...
Technical White PaperUnderstanding Functional Safety FIT base FailureRate Estimates per IEC 62380 and SN 29500 Bharat Rajaram, Senior Member, Technical Staff, and Director, Functional Safety , C2000 Microcontrollers,Texas InstrumentsABSTRACTF unctional Safety standards like International Electrotechnical Commission (IEC) 615081 and InternationalOrganization for Standardization (ISO) 262622 require that semiconductor device manufacturers address bothsystematic and random hardware failures. Systematic failures are managed and mitigated by following rigorousdevelopment processes. Random hardware failures must adhere to specified quantitative metrics to meethardware Safety integrity levels (SILs) or automotive SILs (ASILs).
The following industry reliability guides can provide a estimation for functional safety analysis: • IEC technical report (TR) 62380 and IEC 617095 • SN 29500, the Siemens AG standard for the reliability prediction of electronic and electromechanical components • FIDES such as a military handbook or other documentation from a credible source
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