“SIL 3-compliant IP” is not, by itself, proof that an automotive chip or vehicle meets a functional-safety target. SIL 3 is an IEC 61508 classification; series-production road vehicles use ISO 26262 Automotive Safety Integrity Levels (ASILs). Safety-related IP can support automotive development, but the applicable standard, certification scope, evidence and integration work must all match the product being designed.
What does SIL 3 mean, and is it the same as ASIL D?
SIL 3 is a Safety Integrity Level defined under IEC 61508, a functional-safety standard used across sectors including industrial and medical applications. For functional safety in series-production road vehicles, the relevant framework is ISO 26262, which classifies automotive safety requirements using ASILs. SIL 3 and ASIL D are not interchangeable labels: a supplier can support both standards, but that does not make one rating a translation of the other.
ISO describes ISO 26262 as a framework for integrating functional-safety activities into an organization’s development framework. It addresses hazards caused by malfunctioning behaviour of safety-related electrical and electronic (E/E) systems—not nominal performance—and its stated scope includes series-production road vehicles but excludes mopeds.
There is also a standards-status detail for teams tracking the concept phase. ISO’s listing identifies ISO/DIS 26262-3 as Edition 3, a Draft International Standard in the enquiry phase and under development, intended to replace the published ISO 26262-3:2018. The draft covers item definition, hazard analysis and risk assessment, and the functional safety concept. It should not be described as a published final standard.
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What does a safety certification say about an IP block?
A certificate or standards claim is meaningful only when its scope is clear. It may concern a supplier’s management system, a development process, a specific device or IP block, a tool, or a customer’s integrated system. These are different claims. A supplier-level certification does not automatically certify every component it sells, the customer’s SoC, or the finished vehicle.
For an IP block, ask what product and revision the evidence covers, which standard and target it supports, what assumptions apply to its use, and what work remains for the integrator. A supplier may provide useful safety collateral without declaring that the customer’s application is compliant. The OEM, Tier 1 or system integrator still has to show that the item’s safety requirements are met in the actual design.
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What do current supplier examples actually claim?
The headline does not identify a supplier or product, so it cannot be verified as a specific IP certification claim. These official supplier examples illustrate why the exact wording matters:
| Supplier | Published description | What the description does not establish |
|---|---|---|
| Samsung Foundry | Samsung describes automotive-hardened analog, memory-interface, high-speed-interface and security IP. Its automotive service page says Samsung Foundry has ISO 26262 functional-safety certification and is ASIL-B assessment-ready. | The page does not say that the listed IP is SIL 3-certified or that every IP block or resulting vehicle design has an ASIL rating. |
| Microchip Technology | Microchip says its FPGA functional-safety design flow supports IEC 61508 and ISO 26262. Its page maps IEC 61508 SIL 3 support to industrial and medical use, and ISO 26262 ASIL D support to automotive. | Supporting both standards does not equate SIL 3 with ASIL D or certify a customer’s integrated design. |
| Infineon Technologies | Infineon distinguishes “compliant” devices, developed under project-specific safety plans and accompanied by safety manuals and safety-case reports, from “ready” devices supplied with supporting documentation and analysis. | For a ready device, the integrator still evaluates whether its behaviour is suitable and sufficient for the application’s allocated requirements. |
Samsung Foundry: automotive IP and an ASIL-B readiness claim
Samsung lists automotive IP support for 14 nm, 8 nm and SF5A as ready, while SF4A and SF2A are described as under development. Its design methodology mentions AEC-Q100-aware sign-off, design for test (DFT) and functional-safety support. These are Samsung’s statements about its offering, not evidence of a SIL 3 certificate for each IP block. Node availability and supporting collateral can change, so confirm the current, node-specific documentation before relying on a claim.
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“ASIL-B assessment-ready” is not the same as saying an IP block is independently certified to ASIL B, much less SIL 3. Samsung’s stated ISO 26262 certification also needs to be read in its stated scope rather than extended to every IP product or customer design.
Microchip: two standards, separately mapped
Microchip’s FPGA page is a useful example of careful standards mapping: it lists support up to SIL 3 under IEC 61508 and up to ASIL D under ISO 26262, assigning the former to industrial and medical segments and the latter to automotive. Its Functional Safety Management System is separately described as TÜV Rheinland-certified across ISO 26262 ASIL D and IEC 61508 SIL 3. That management-system scope statement is not proof that a particular third-party automotive design or all IP is certified.
Microchip says an FPGA safety packet can include a TÜV-certified tool suite, safety user guide, reliability report, design-suite documentation and relevant IP cores. The specific FPGA families and software versions are subject to change; verify the exact supported family and version with the supplier.
How can safety-related IP help an automotive design?
Reusable IP and a supplier’s safety collateral can give a design team a starting point for implementing and documenting safety functions. A package may include design documentation, reliability information, assumptions, diagnostics information, safety manuals, safety-case material or qualified-tool artifacts. That can reduce the amount of evidence the team must create from scratch, but only if the evidence matches the selected device, process, safety requirements and intended integration.
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“Accelerates” is therefore a plausible benefit, not a result established by the headline alone. Microchip describes its FPGA design flow as simplifying and accelerating safety certification, and Infineon describes documentation and analysis supplied with ready devices. The reviewed vendor material does not provide an independently measured schedule comparison, quantified time saving or study that demonstrates how much a particular automotive program would accelerate. Do not treat marketing language as a guaranteed schedule outcome.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should you ask an IP vendor before selecting a block?
Request evidence for the exact IP, device and intended automotive use—not just a standards logo or a general company certificate. Use the answers to establish where the supplier’s responsibility ends and the integrator’s safety case begins.
- Identify the target standard and application. Ask whether the claim is for ISO 26262 and a specified automotive ASIL, IEC 61508 and a specified SIL, or another scope. Confirm that the target fits the vehicle item and its allocated safety requirements.
- Pin down the claim’s scope. Ask whether the certificate or assessment applies to a management system, development process, tool, specific IP/device, or integrated system. Request the certificate scope and the product revisions it covers.
- Request the safety evidence. Ask for the safety manual, safety case or report, reliability or FMEDA data where applicable, diagnostic assumptions, fault-coverage information, integration constraints and tool-qualification artifacts. Confirm what is available for the exact block and implementation.
- Review assumptions and responsibilities. Establish which safety analyses, tailoring, validation and documentation the supplier provides, and which the OEM, Tier 1 or system integrator must complete. Check whether the block’s behaviour is suitable and sufficient for its assigned application requirements.
- Confirm technology and lifecycle fit. Verify the IP function, process node or FPGA family, software version, operating environment, current availability and lifecycle support. Do not assume collateral for one node or version applies to another.
- Test any acceleration claim. If schedule savings matter, request the baseline, measured engineering effort or schedule, comparison method, scope and independent validation. Without those details, treat acceleration as a vendor benefit claim, not a quantified result.
How to read the headline safely
Without a named supplier, IP block, certificate scope and target application, “SIL 3-compliant IP accelerates next-generation automotive design” is an unverified supplier-style claim, not a complete technical conclusion. A credible product-specific version needs to identify the standard and automotive target actually supported, the evidence that applies to the IP, and the integration work still required. SIL 3 should not be presented as an automotive ASIL, and neither a process certificate nor a reusable IP package by itself proves that the final vehicle system is compliant.
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