Designed for the next generation of drivetrains, electrification solutions, and domain-oriented vehicle platforms, Stellar P automotive MCUs deliver a new level of real-time control performance, functional safety, and timing determinism for motion-control applications. The Stellar P series continues to scale and evolve with higher performance, thanks to a 20% increase in core frequency and a more optimized system architecture with faster memory access.
By consolidating multiple functions into a single MCU with a high number of I/Os and advanced analog integration, Stellar P helps reduce the number of separate control units and the associated wiring harnesses. This saves space, lowers system cost, and simplifies architectures, which are critical advantages in the compact, thermally constrained, and increasingly complex environments of hybrid and electric vehicles.
The Stellar P family offers extensive scalability in on-chip memory (including the xMemory option), flexible multi-core configurations, and high-performance ADC subsystems. This enables ECU designers to address the growing trend toward X in 1 integration (e.g. combining traction inverter, OBC, DC DC, and other functions) using a consistent, future-proof MCU platform.
Stellar P with integrated NPU for advanced AI use cases
To meet the growing demand for AI-powered features, Stellar P now integrates a Neural Processing Unit (NPU), enabling advanced Artificial Intelligence (AI) use cases such as predictive maintenance and precise motor-control algorithms for smoother operation. Interfaces have been upgraded to deliver more efficient outputs and faster response times, a key requirement for electrification applications. At the same time, overall efficiency has been improved with new low-power modes, increasing performance per watt and supporting more energy-conscious designs.
Applications
Stellar P microcontrollers provide high real-time and deterministic processing capabilities with minimal power consumption. They integrate multiple Arm® Cortex®-R52 cores, which deliver advanced isolation through hardware-based mechanisms and virtualization to maintain data integrity for safety-critical workloads. The cores can operate in lockstep or split-lock mode to address various application requirements for safety levels and processing performance.
- Embedded NPU for real-time AI
- Efficiency and control
- Integration of ECUs for electrification
Discover our product portfolio
Stellar P MCUs can effectively manage the increasing complexity of software and ensure better integration with its hardware resources. With their unique architecture and hardware-based virtualization capabilities based on Cortex®-R52 cores and firewalls to protect access to resources, Stellar P MCUs simplify the development and integration of multiple-source software on the same chip while ensuring safe isolation, determinism, and performance.
Benefits
- Software-defined ready architecture: Built on the high-performance Arm® Cortex®-R52+ platform, Stellar MCUs provide a scalable, unified architecture that simplifies the transition from legacy setups to modern vehicle architectures.
- First real neural network accelerator: Embedded NPU to accelerate AI models to deliver new functionalities for better reliability and more efficient vehicles.
- Hardware-based real-time virtualization: Safely consolidate multiple applications onto a single chip using hardware "sandboxing." This allows different Virtual ECUs with varying safety levels (up to ASIL D) to run simultaneously without interference, reducing hardware complexity.
- Revolutionary phase-change memory (PCM): Stellar's embedded xMemory offers fast read/write speeds with single-bit alterability. It enables OTA updates with zero downtime by dynamically allocating memory to store new software images.
- Uncompromising functional safety: Designed for the most critical automotive systems, the entire Stellar family supports ISO 26262 ASIL D compliance. Features like lockstep core configuration and hardware safety mechanisms ensure maximum reliability for safety-critical applications
- Advanced data security: Protect vehicle integrity with a state-of-the-art Hardware Security Module (HSM) compliant with EVITA full standards with high-speed cryptographic services and safe network authentication.
- Superior power efficiency: Manufactured using 28nm FD-SOI (Fully Depleted Silicon-On-Insulator) technology, Stellar MCUs deliver an exceptional performance-to-power ratio. This technology also provides inherent immunity to radiation-induced soft errors, further enhancing system reliability.
- Extensive partner ecosystem: Accelerate development with a complete ecosystem of tools. Stellar is supported by industry-leading compilers (Green Hills, IAR, …), debuggers, and AUTOSAR-compliant software stacks from partners, ensuring a smooth path to production.
Development ecosystem
Unlocking the full potential of Stellar microcontrollers requires more than just silicon. Our complete software ecosystem combines the power of the StellarStudio development environment, industry-standard AUTOSAR solutions, and a vast network of trusted partners. From rapid prototyping to ASIL-D safety compliance, we provide the tools you need to build the next generation of automotive architectures.
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