Renesas Electronics RH850/U2A Zone/Domain Microcontrollers

Renesas RH850/U2A Zone/Domain Microcontrollers are automotive-control devices designed to address the growing demand for integrating multiple applications into a single chip to realize unified electronic control units (ECUs) for the evolving electrical-electronic (E/E) architectures. Based on 28nm process technology, the 32-bit RH850/U2A MCUs build on key functions from Renesas’ RH850/Px Series for chassis control and RH850/Fx Series for body control to deliver improved performance. The automotive-control MCUs are equipped with up to four 400MHz CPU cores in a dual-core lock-step structure. Each CPU core integrates a hardware-based virtualization-assisted function allowing multiple software systems with varying ISO26262 functional safety levels to operate independently without interference during high performance. The virtualization-assisted function also reduces the virtualization overhead to maintain real-time execution. This enables users to integrate multiple ECU functions into a single ECU while maintaining safety, security, and real-time operation requirements.

The MCUs include security functions fulfilling EVITA Full for enhanced protection against cyber-attacks, enabling the device to support safe and rapid Full No-Wait OTA software updates as security requirements evolve. Equipped with an extensive set of network interfaces, the RH850/U2A MCUs process large amounts of sensor data generated by multiple types of sensors in ADAS and autonomous driving functions. This processing power allows users to support future high-speed network functions and advanced communications throughput requirements.

Features

  • 400MHz speed for up to 4+4 (LockStep) RH850 G4MH CPUs
  • Top-level ratio of performance vs. power consumption
  • Up to 16MB Flash
  • Up to 3.6MB RAM
  • Up to 3x ADC (12-bit), with a maximum of 94 channels, including 4+4 Track and Hold inputs
  • GTM v3.5 vehicle motion timer
  • Various generic timer modules, including watchdog, OS, and TAUx
  • High-temperature support (up to Tj = +160°C)
  • Low power consumption
  • Interfaces
    • Up to 2x Ethernet AVB including Gbit and 100MBit
    • CAN-FD, FlexRay, SPI, RHSIF, SENT, LIN, UART, I2C, PSI5, and CXPI
    • SFMA (Serial flash memory interface)
    • eMMC
  • Support for FuSa and Security
    • Security module with EVITA full support
    • ISO26262 ASIL-D
  • Extensive Eco-System supporting the latest standards concerning Tool, HW, and SW areas
  • Hypervisor support

Applications

  • Zone control ECU
  • Domain control ECU
  • Communication gateway
  • Chassis and safety
  • Energy management

Block Diagram

Block Diagram - Renesas Electronics RH850/U2A Zone/Domain Microcontrollers

Renesas Electronics RH850/U2A Zone/Domain Microcontrollers