company blog about TI AM2632COKFHMZCZRQ1 Automotive Dual-Core 400MHz MCU With Real-Time Control And Security

Shenzhen Mingjiada Electronics Co., Ltd. supplies/recycles the TI AM2632COKFHMZCZRQ1 automotive-grade dual-core 400MHz microcontroller, delivering robust real-time control and comprehensive security capabilities for automotive electronics.

I. Core Positioning of the AM2632COKFHMZCZRQ1

The AM2632COKFHMZCZRQ1 is a high-performance automotive-grade microcontroller within TI's Sitara™ series. Built upon dual Arm® Cortex®-R5F cores with a single-core clock speed of up to 400MHz, it is specifically engineered for automotive control scenarios demanding high real-time performance, security, and reliability. This product aligns deeply with automotive electrification and intelligent development trends, balancing ultimate real-time control performance with dual security protection (functional safety + information security). Having passed stringent automotive certification, it is widely adaptable for core automotive electronics applications including powertrain domains, chassis domains, body domains, and domain controllers. It stands as the preferred core chip for next-generation intelligent vehicle embedded control.

II. Core Hardware Architecture and Computing Advantages

1. High-Performance Dual-Core Processing Architecture

The AM2632COKFHMZCZRQ1 features dual Arm Cortex-R5F processor cores, each operating at a stable single-core frequency of 400MHz. It supports two flexible operating modes: independent operation and dual-core lockstep. Independent mode enables parallel processing of multiple tasks, significantly enhancing computational efficiency for complex control logic. while Lockstep mode employs synchronous dual-core verification to eliminate system failures caused by single-core faults, establishing a robust hardware foundation for functional safety.

The AM2632COKFHMZCZRQ1 cores are complemented by comprehensive caches and tightly coupled memory units. with each core featuring: - 16KB instruction cache with 64-bit ECC verification - 16KB data cache with 32-bit ECC verification - 64KB tightly-coupled memory (TCM) with 32-bit ECC verification This configuration enables low-latency execution of critical code, minimising control command response times to meet automotive electronics' microsecond-level real-time control requirements.

2. High-Reliability Storage Subsystem

The AM2632COKFHMZCZRQ1 incorporates 2MB of on-chip SRAM (OCSRAM), divided into four 512KB storage blocks. Each block employs ECC error checking and correction mechanisms, effectively countering data interference and storage errors in complex automotive electromagnetic environments to safeguard operational data integrity. Simultaneously, the EDMA engine enables efficient data transfer between peripherals and memory without CPU intervention, freeing core processing power for control computations and further enhancing system real-time performance.

III. Ultimate Real-Time Control Capabilities, Tailored for Automotive Precision Control Demands

1. Professional-Grade Control Peripheral Cluster

The AM2632COKFHMZCZRQ1 integrates a comprehensive real-time control subsystem (CONTROLSS) with a rich array of high-precision analogue and digital peripherals, delivering a one-stop control solution. It enables precise regulation of automotive motors, power supplies, and actuators without requiring additional external chips:

- Analogue Acquisition Module: Equipped with five 12-bit SAR ADCs, each supporting six inputs for a total of 30 channels. Operating at sampling rates up to 4 MSPS, it incorporates ten programmable DAC-referenced analogue comparators (CMPSS) and one 12-bit DAC. This enables high-speed analogue signal acquisition, precise comparison, and closed-loop regulation, suitable for in-vehicle sensing applications such as battery monitoring and current/voltage sampling.

- Digital Drive Module: Integrates 32 enhanced PWM (EPWM) channels supporting advanced PWM configurations and high-resolution HRPWM output. Paired with 10 enhanced capture (ECAP) and 3 quadrature encoder pulse (EQEP) modules, it precisely drives automotive actuators like motors and solenoid valves, enabling millisecond-level response in power control, steering control, and lighting control applications.

- Signal Interconnect Module: Incorporates flexible IO crossbar switches (XBAR) enabling free peripheral pin mapping. This simplifies hardware routing design, accommodates diverse in-vehicle control circuit layouts, and enhances solution flexibility.

2. Comprehensive Automotive Communication Interfaces

Addressing in-vehicle networking requirements, the AM2632COKFHMZCZRQ1 integrates multiple high-speed communication interfaces supporting mainstream automotive protocols to ensure efficient and stable data transmission:

- Automotive Bus Interfaces: 4-channel MCAN module supporting CAN-FD, 5-channel LIN interfaces, 6-channel UART interfaces, 5-channel SPI interfaces, and 4-channel I2C interfaces. These cover standard CAN/LIN bus communication requirements for body electronics, sensors, and actuator command exchanges.

- High-Speed Communication Interfaces: 1-channel QSPI interface and 4-channel FSI transceiver interfaces support high-speed data expansion transmission. Integrated Ethernet switch supporting MII/RMII/RGMII interfaces, compatible with industrial Ethernet protocols including EtherCAT, PROFINET, and EtherNet/IP, catering to the high-speed networking requirements of in-vehicle domain controllers.

- General-purpose I/O: Up to 139 GPIO pins for flexible control and monitoring of various in-vehicle switches, indicator lights, and peripherals, maximising expandability.

IV. Dual Safety Protection Meeting Stringent Automotive Standards

1. Functional Safety: Compliant with ISO 26262 ASIL-D top-tier requirements

The AM2632COKFHMZCZRQ1 is deeply adapted to automotive functional safety regulations, certified by TÜV SÜD, with both hardware and system capabilities achieving ISO 26262 ASIL-D level – the highest safety rating for automotive electronics. It is directly applicable to safety-critical scenarios such as powertrain control, braking control, and steering control:

- Integrated Error Signal Module (ESM) with dedicated SAFETY_ERRORn fault pins enables real-time system fault reporting for rapid response;

- Supports built-in self-test (BIST) for CPU and on-chip memory, fault injection detection, alongside voltage, temperature, and clock monitoring modules with window watchdog functionality, delivering comprehensive operational diagnostics;

- Critical storage units and buses incorporate parity/ECC checks to prevent hardware failures from causing system instability, ensuring driving safety.

2. Information Security: Hardware-level encryption to withstand in-vehicle network attacks

Addressing cybersecurity risks in intelligent vehicles, the AM2632COKFHMZCZRQ1 integrates a Hardware Security Module (HSM) supporting Auto SHE 1.1/EVITA security standards, establishing a comprehensive information security defence system:

- Incorporates a hardware encryption engine supporting AES (128/192/256-bit), SHA2 (256/384/512-bit), DES and other encryption algorithms. Paired with a public key accelerator (PKA), it enables RSA/ECC asymmetric encryption processing;

- Supports secure boot, device tamper resistance, software rollback prevention, secure debugging, and key management. Stores root keys in OTP memory to safeguard vehicle firmware and data against unauthorised tampering or theft;

- Integrates a Memory Protection Unit (MPU) and system firewall to partition secure and non-secure zones, enabling granular access control and stringent prevention of unauthorised access.

V. Automotive-Grade Compliance and Environmental Reliability

The AM2632COKFHMZCZRQ1 strictly adheres to automotive quality standards, having achieved AEC-Q100 automotive-grade reliability certification. Manufactured using advanced 45nm process technology, it features a 324-pin NFBGA (ZCZ package) with dimensions of 15.0mm × 15.0mm and 0.8mm pin pitch, optimised for high-density PCB layouts in automotive applications.

Its operating temperature range spans -40°C to +105°C, enabling it to withstand extreme automotive conditions including high/low temperatures, vibration, and electromagnetic interference. It delivers long-term stable, fault-free operation, meeting the full lifecycle reliability requirements for automotive electronics. Simultaneously supporting bare-metal, FreeRTOS, ThreadX, Zephyr, and other real-time operating systems, it lowers development barriers and shortens automotive product R&D cycles.

VI. Core Application Scenarios for AM2632COKFHMZCZRQ1

- Powertrain Domain Control: Motor controllers for new energy vehicles, On-Board Chargers (OBC), DC-DC converters, and slave control units for Battery Management Systems (BMS);

- Chassis domain control: Electric power steering (EPS), electronic braking systems (EBS), electronic stability control (ESC);

- Body Domain Control: Body Control Modules (BCM), lighting control systems, air conditioning control systems, door/seat control modules;

- Domain Controllers and In-Vehicle Communication: In-vehicle domain controllers, vehicle gateways, industrial-grade in-vehicle communication modules, etc.

VII. Summary of AM2632COKFHMZCZRQ1

The AM2632COKFHMZCZRQ1 achieves a perfect balance between automotive electronics' core demands for high performance, high real-time capability, high safety, and high reliability. With its 400MHz dual-core processing power, specialised real-time control peripherals, ASIL-D top-tier functional safety, hardware-level information security protection, and stringent automotive compliance, it stands as the core computing chip empowering automotive manufacturers to develop next-generation intelligent and secure in-vehicle electronic systems.