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The StellarG6 SR6 G7 series is a 32-bit Arm® Cortex®-R52+ automotive-grade integrated MCU designed to meet the needs of high-performance domain controllers and ECUs. It excels in interconnected, updatable automation and electric vehicle architectures, offering top-notch real-time performance and safety capabilities (supporting up to ASIL-D standards). By introducing hardware-based virtualization technology, this MCU series not only simplifies the development and integration of multi-source software but also significantly enhances software operational efficiency.
Furthermore, the StellarG6 SR6 G7 series supports efficient OTA (over-the-air) reprogramming, allowing for quick downloads and activation of new firmware with almost no additional memory overhead, thanks to its built-in dual image storage feature. It also provides high-speed encryption services to meet security requirements such as network authentication.
Core Features Overview
Automotive-grade certification: Compliant with AEC-Q100 standards, ensuring reliability in harsh environments.
Real-time and safety performance: Supports the highest ASIL-D safety level, meeting the automotive industry’s stringent safety requirements.
Hardware virtualization technology: Optimizes multi-software integration and enhances system performance.
Efficient OTA reprogramming: Built-in dual image storage supports fast, economical firmware updates.
High-speed encryption services: Provides security functions such as network identity authentication.
Table 1. Overview of SR6G7C6, SR6G7C4
Powerful Core Architecture
Multi-core Design:
– 6×32-bit Cortex®-R52+ cores, with 4 checker cores and 2 in a split lock-step configuration.
– Configurable as either 6 cores (4 lock-step) or 5 cores (all lock-step).
– Compliant with Arm®v8-R standards, supporting single-precision floating-point operations (FPU) and real-time virtualization privilege management.
– 2 Cortex®-M4 multi-purpose accelerators, supporting synchronous configuration.
– 4 synchronously configured eDMA engines, enhancing data processing efficiency.
Outstanding Storage Performance
On-chip Non-volatile Memory (NVM):
– Up to 5 MB of code NVM, supporting embedded memory replication, optimized for OTA reprogramming, scalable up to 2×19.5 MB.
– 1024 KB of HSM dedicated code NVM, ensuring secure module operation.
– 640 KB of data NVM (of which 512 KB+128 KB are dedicated to HSM).
On-chip General SRAM:
– Up to 9280 KB, meeting high-performance computing needs.
Figure 1. Block diagram
Application Scenarios and Future Prospects
With its powerful performance and flexible architecture design, the StellarG6 SR6 G7 series is widely applicable to next-generation automotive electronic systems, including autonomous driving domain controllers, electric vehicle power systems, and vehicle-to-everything security modules. Its efficient OTA update capability and top-tier safety performance provide solid technical support for the intelligent and electrified transformation of the automotive industry.
The launch of the StellarG6 SR6 G7 series marks a new height in automotive MCU technology, laying the foundation for future innovations in automotive electronic architecture.
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