Renesas Introduces RX Functional Safety – First SIL3‑Certified Software for Industrial Equipment

Renesas Electronics today announced the launch of its new “RX Functional Safety” solution, designed to simplify IEC 61508 SIL 3 certification for industrial equipment. Built on the versatile RX microcontroller family, the solution delivers advanced safety features—including on‑chip self‑diagnostics and the world’s first SIL 3‑certified functional‑safety software—along with comprehensive reference documents to help developers build the safety‑critical parts of their applications. By providing end‑to‑end safety support, the platform can reduce the overall certification timeline by a year or more.

The platform employs a dual‑MCU architecture, enabling full compatibility with all Renesas MCUs based on the RXv2 core. This architecture streamlines safety verification and powers a highly efficient diagnostics library. Because the safety software itself is SIL 3‑certified, developers no longer need to write or certify safety‑specific code for Renesas MCUs, freeing them to focus on application logic.

Developing a new functional‑safety system typically involves a steep learning curve: interpreting complex standards, constructing dual‑core MCUs, and selecting external partners. Even experienced practitioners struggle with the overhead of software certification and the recurring effort required for recertification when system functions expand.

To address these challenges, Renesas offers a turnkey, software‑centric solution that bundles:

• RX Functional Safety – Self‑Test Software Kit: on‑chip diagnostics at the MCU level
• Self‑diagnostics software library
• Safety manual and detailed user guide