Το εταιρικό blog για Infineon SAK-TC399XP-256F300S BD 32-Bit Single-Chip AURIX™ TC3 Microcontroller

Shenzhen Mingjiada Electronics Co., Ltd. supplies and recycles the Infineon SAK-TC399XP-256F300S BD 32-bit AURIX™ TC3 microcontroller.

I. Product Overview and Positioning of the SAK-TC399XP-256F300S BD

The SAK-TC399XP-256F300S BD is a second-generation high-end 32-bit TriCore™ microcontroller from Infineon Technologies’ AURIX™ TC3 series. Built on a 40nm embedded flash process, it is specifically designed for safety-critical and high-performance computing applications such as automotive electronics and industrial control, and is the flagship computing product within the AURIX™ TC3 family. This device combines exceptional computational performance, high reliability and security, and extensive peripheral expandability, making it ideally suited for demanding applications such as automotive domain controllers, new energy powertrain systems, advanced driver assistance systems, and industrial automation. It supports the top-tier safety standards of ISO 26262 ASIL-D and IEC 61508 SIL-3, addressing both functional safety and cybersecurity requirements, and serves as the core computational platform for high-end embedded control applications.

In the model designation SAK-TC399XP-256F300S BD, ‘SAK’ denotes an Infineon standard mass-production device, ‘TC399XP’ is the core series model, ‘256F’ indicates the memory configuration specification, and ‘300S’ represents a core clock frequency of 300 MHz. BD denotes the device version and package type. The product is positioned for the high-end, high-performance, and high-security embedded control market, offering exceptional industry adaptability and technical scalability.

II. Core Architecture and Performance Parameters of the SAK-TC399XP-256F300S BD

Multi-core Processing Architecture

The SAK-TC399XP-256F300S BD microcontroller employs an innovative multi-core TriCore™ architecture, featuring six 32-bit TriCore™ computing cores operating at 300 MHz, coupled with four dedicated latch-check cores, forming a ‘6 computing cores + 4 latch-check cores’ heterogeneous secure computing configuration, The overall computational capability reaches 4,000 DMIPS, balancing high-performance parallel computing with real-time fault detection. All cores support both floating-point and fixed-point operations, enabling efficient processing of complex algorithms, data fusion and real-time control logic, thereby meeting the computational demands of applications such as electric vehicle powertrain control, autonomous driving domain control and industrial servo control.

The multi-core architecture supports flexible computing power allocation and task scheduling, enabling functional partitioning. This ensures the independent operation of ASIL-D safety functions whilst efficiently handling non-safety functions, significantly enhancing system integration and operational efficiency. It also supports the AUTOSAR 4.2 standard, aligning with automotive electronics software architecture development specifications.

Storage Resource Configuration

The SAK-TC399XP-256F300S BD device is equipped with high-capacity on-chip memory featuring ECC error correction, ensuring absolute reliability of data storage. Key storage parameters are as follows:

- Program Flash: 16MB, supporting ECC error checking and correction. It can store large-capacity firmware, algorithm programs and configuration parameters, and supports A/B Swap OTA remote updates to enable seamless firmware updates, meeting the remote maintenance requirements of automotive and industrial equipment;

- Static Random Access Memory (SRAM): 2816KB (2.75MB), also featuring an ECC protection mechanism, balancing high-speed data read/write capabilities with data integrity to meet the high-speed access requirements of real-time computing, data caching and temporary variable storage;

- The storage interface supports eMMC/SDIO expansion, allowing connection to high-capacity storage media to further enhance data storage and program loading capabilities.

Basic Electrical and Packaging Characteristics

- Power Supply: Single-supply operation, supporting 3.3V or 5V supply voltages, compatible with mainstream embedded system power designs, simplifying peripheral power circuits;

- Operating Temperature: -40°C to +125°C, meeting automotive-grade and industrial-grade wide-temperature environmental requirements, with excellent resistance to extreme temperature fluctuations;

- Package Type: PG-LFBGA-516 ultra-thin ball grid array package, featuring a compact footprint and regular pin layout, facilitating high-density PCB layout and suitable for miniaturised, integrated device designs;

- Compliance certifications: Complies with the AEC-Q100 automotive electronics reliability standard and RoHS environmental certification; halogen-free design meets global market compliance requirements.

III. SAK-TC399XP-256F300S BD Functional Safety and Cybersecurity Design

Functional Safety Assurance (ISO 26262 ASIL-D)

As a microcontroller supporting the highest ASIL-D safety integrity level, the SAK-TC399XP-256F300S BD incorporates comprehensive functional safety mechanisms to eliminate system risks caused by single points of failure:

- Lockstep Core Monitoring: Four lockstep cores operate in synchronisation with the main core, verifying computational results in real time, detecting hardware faults within milliseconds, and rapidly triggering safety responses;

- Memory ECC protection: Full coverage of error checking and correction mechanisms for both Flash and SRAM, safeguarding against memory anomalies caused by data inversion or interference;

- Hardware self-test modules: Built-in LBIST (Logic Built-in Self-Test) and SBST (Software-Based Self-Test) modules perform periodic hardware integrity checks to ensure long-term stable operation of the device;

- Security Management Unit (SMU): An independent security control module that monitors system status in real time; in the event of an anomaly, it can rapidly cut off hazardous outputs and trigger a safety fallback mechanism;

- Redundant peripheral design: Critical peripherals such as timers and communication interfaces are configured redundantly to prevent system failure caused by a single peripheral failure.

Information Security Protection (EVITA Full HSM)

The SAK-TC399XP-256F300S BD incorporates an EVITA Full-grade Hardware Security Module (HSM), integrating a powerful encryption and decryption engine that supports mainstream encryption algorithms such as AES-256 and SHA-2 and other mainstream encryption algorithms, enabling functions such as data encryption, identity authentication, secure boot and firmware signature verification. It effectively defends against security threats including cyberattacks, firmware tampering and data theft, meeting the information security requirements of connected scenarios such as vehicle-to-everything (V2X) and industrial internet of things (IIoT), thereby fortifying the device’s security defences.

IV. SAK-TC399XP-256F300S BD: Comprehensive Peripherals and Communication Interfaces

The SAK-TC399XP-256F300S BD integrates a diverse range of peripherals and high-speed communication interfaces, catering to the requirements of multiple scenarios including real-time control, data transmission and sensor connectivity. Its peripheral resource configuration is among the best in the industry, significantly reducing the number of external components and lowering system costs and complexity:

Communication Interfaces

- In-vehicle communication: 12 CAN FD interfaces, 2 FlexRay interfaces, 12 LIN interfaces, 25 SENT interfaces and 6 PSI5 interfaces, providing comprehensive coverage of automotive communication protocols and enabling connectivity with in-vehicle sensors, actuators and vehicle networks;

- High-Speed Communication: 1 Gigabit Ethernet (1Gbit Ethernet), 2 HSSL high-speed serial interfaces, and 4 MSC interfaces, meeting requirements for high-speed data transmission, remote communication, and multi-device cascading;

- General-Purpose Serial Interfaces: 6 QSPI, 2 I²C, and 1 I²S, compatible with communication connections for standard peripherals, sensors, and memory chips.

Control and Peripherals

- Timer Modules: Integrates three redundant timer groups—GTM (General-Purpose Timer Module), CCU6 and GPT12—supporting high-precision PWM output, pulse capture and timing/counting, suitable for applications such as motor control, power management and timing control;

- DMA Controller: 128 DMA channels, supporting high-speed data transfer without CPU intervention, freeing up CPU processing power and enhancing the system’s parallel processing capabilities;

- Analogue and I/O: Integrated with multiple high-precision ADC channels, supporting rapid analogue signal acquisition; general-purpose I/O pins can be flexibly configured for input, output, or multiplexing functions, suitable for driving various peripherals.

V. Core Application Scenarios of the SAK-TC399XP-256F300S BD

Thanks to its high performance, high security and high integration, the SAK-TC399XP-256F300S BD is widely used in high-end sectors such as automotive electronics, industrial control and rail transport. The core application scenarios are as follows:

- Automotive electronics: safety-critical in-vehicle electronic control units such as vehicle domain controllers (CDC), new energy vehicle powertrain control, fuel cell electronic control, advanced driver-assistance systems (ADAS), chassis control systems, and vehicle gateways;

- Industrial automation: High-end PLC controllers, servo drives, industrial robot controllers, industrial IoT gateways, and precision measuring instruments;

- Other sectors: On-board control systems for rail transport, medical equipment control, aerospace ground support equipment, and smart grid control devices – all scenarios demanding stringent reliability, safety, and computational power.

VI. Summary of Core Advantages of the SAK-TC399XP-256F300S BD Product

Core advantages of the SAK-TC399XP-256F300S BD: 1. Flagship-level multi-core computing power; the 300MHz hexa-core architecture meets complex computational demands; 2. Top-tier functional safety and information security; supports ASIL-D and EVITA Full HSM, suitable for demanding safety scenarios; 3. Ultra-high-capacity ECC memory with support for OTA updates, balancing reliability and scalability; 4. Comprehensive communication peripherals covering all scenarios, with full support for automotive and industrial protocols, ensuring high system integration; 5. Automotive-grade wide-temperature, high-reliability design, with hardware and software compatibility with the AURIX™ family, facilitating seamless migration and development.

As a flagship product in Infineon’s AURIX™ TC3 series, the SAK-TC399XP-256F300S BD microcontroller strikes a perfect balance between performance, security, integration and ease of use. It not only meets the demands of today’s high-end embedded control applications but is also well-suited to the future evolution of intelligent and connected devices, making it the ideal choice for safety-critical embedded systems.