STMicroelectronics Stellar SR6 automotive microcontrollers (MCUs)

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STMicroelectronics has begun delivering the first Stellar SR6 automotive microcontrollers (MCUs) for automotive-industry leaders to realise the next generation of advanced vehicle electronics that deliver high levels of performance and safety. The Stellar SR6 scalable MCU family is architected for high-performing and efficient vehicle platforms. The MCUs are particularly suited to domain and zone controllers that simplify vehicle wiring and enable migration to software-defined platforms for flexibility and rich features.

The MCUs leverage ST’s robust FD-SOI process technology, which has good soft error rate (SER) immunity to allow availability for ISO 26262 functional-safety applications up to ASIL-D. The devices feature hardware-based virtualisation, which allows multiple software applications to coexist safely while preserving performance and enabling real-time determinism. It enhances flexibility for designers by allowing multiple independent applications or virtual electronic control units (ECUs) in the same physical MCU.

The family contains two series, P and G, based on the same platform; each is tailored for the intended domain to offer optimised and rational solutions for next-generation vehicle needs. The Stellar P Integration MCU series is designed to meet the demands of next-generation drivetrain and electrification integration/domain systems, delivering powerful real-time performance and determinism for quality driving experiences and safety. Stellar G Integration MCUs feature efficient accelerators for secure data routing via CAN, LIN and Ethernet networks and deliver a large set of communication interfaces. With their flexible low-power modes supporting low quiescent current and an intelligent monitoring subsystem, Stellar G MCUs enable high power efficiency.

The first P and G series MCUs have up to 20 MB of robust phase-change memory (PCM), which enables high performance and data retention and is compliant with AEC-Q100 Grade 0. Stellar’s innovative dual-image storage enables efficient over-the-air (OTA) reprogramming with major savings in memory size through an ST innovation that supports configuring the PCM cell structure to double the memory size during OTA updates, up to 2x 20 MB. PCM access time is said to be faster than other non-volatile memories such as 1T (single-transistor) NOR Flash.

For more information: https://www.st.com/stellar-auto-32bit-mcus.