Features
- Key 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 3 x 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, TAUx
- High-temperature support: up to Tj = 160 °C
- Low power consumption
- State of the Art Interfaces
- Up to 2x Ethernet AVB including Gbit and 100MBit
- CAN FD, FlexRay, SPI, RHSIF, SENT, LIN, UART, I2C, PSI5, CXPI
- SFMA (Serial flash memory interface)
- eMMC
- Support for Functional Safety (FuSa) and Security
- Security module with EVITA Full support
- ISO 26262 ASIL D
- Extensive ecosystem supporting the latest standards concerning tool, hardware and software areas
- Hypervisor support
Description
The RH850/U2A MCU is the first member of Renesas’ cross-domain MCUs, a new generation of automotive-control devices, designed to address the growing need to integrate multiple applications into a single chip to realize unified electronic control units (ECUs) for the evolving electrical/electronic architecture (E/E architecture). Based on 28 nanometer (nm) process technology, the 32-bit RH850/U2A automotive MCU builds on key functions from Renesas’ RH850/Px Series for chassis control and RH850/Fx Series for body control to deliver improved performance.
This automotive-control MCU is equipped with up to four 400 megahertz (MHz) CPU cores in a dual-core lock-step structure. Each CPU core integrates a hardware-based virtualization-assisted function, which allows multiple software systems with varying ISO 26262 functional safety levels to operate independently without interference during high performance. It 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 MCU includes security functions fulfilling EVITA Full for enhanced protection against cyber-attacks, enabling the device to support safe and rapid Full No-Wait Over-the-Air (OTA) software updates as security requirements evolve.
The RH850/U2A MCU is also equipped with an extensive set of networking interfaces, enabling the MCU to process the large amounts of sensor data being generated by multiple types of sensors in ADAS and autonomous driving functions. This allows customers to support future high-speed network functions and advanced communications throughput requirements.
Parameters
| Attributes | Value |
|---|---|
| Main CPU | G4MH |
| Program Memory (KB) | 6144, 8192, 16384 |
| RAM (KB) | 768, 1792, 3584 |
| Supply Voltage (V) | - |
| I/O Ports | 77, 97, 129, 165, 221, 301 |
| DRAM I/F | No |
| 3D GPU | No |
| Temp. Range (°C) | -40 to +160 |
| Ethernet speed | 100Mb, 100Mb/1Gb |
| Ethernet (ch) | 1, 2 |
| EtherCat (ch) (#) | 0 |
| USB FS (host ch/device ch) | ( 0 / 0 ) |
| USB HS (host ch/device ch) | ( 0 / 0 ) |
| USB SS (host ch/device ch) | ( 0 / 0 ) |
| PCI Express (generation and ch) | No |
| SCI or UART (ch) | 0, 3 |
| SPI (ch) | 4, 6, 9, 10 |
| I2C (#) | 1, 2 |
| CAN (ch) | 7, 8, 11, 12, 16 |
| CAN-FD (ch) | 7, 8, 11, 12, 16 |
| Wireless | No |
| High Resolution Output Timer | 0 |
| PWM Output (pin#) | 0 |
| 32-Bit Timer (ch) | 16 |
| 16-Bit Timer (ch) (#) | 48 |
| 8-Bit Timer (ch) | 0 |
| Standby operable timer | No |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 0 |
| 16-Bit A/D Converter (ch) | 0 |
| 14-Bit A/D Converter (ch) | 0 |
| 12-Bit A/D Converter (ch) | 29, 45, 64, 79, 94 |
| 10-Bit A/D Converter (ch) | 0 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 0 |
| 16-Bit D/A Converter (ch) | 0 |
| 12-Bit D/A Converter (ch) | 0 |
| 10-Bit D/A Converter (ch) (#) | 0 |
| 8-Bit D/A Converter (ch) | 0 |
| Capacitive Touch Sensing Unit (ch) | 0 |
| Graphics LCD Controller | No |
| MIPI Interfaces (CSI) (ch) | 0 |
| Image Codec | No |
| Segment LCD Controller | No |
Application Block Diagrams
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Advanced Automotive Domain Controller (AADC)
Advanced Automotive Domain Controller integrates key systems for smarter and connected vehicles.
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Vehicle Control Unit
The vehicle control unit supports SOA, and zonal architecture, offers multi-core performance, and FuSa compliance.
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Communication Gateway & Integrated DVR/DMS System
Integrated automotive gateway merging CoGW with DVR/DMS video processing.
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Zone-ECU Virtualization Solution Platform
Zone-ECU virtualization platform integrates virtual ECUs on one physical unit, reducing costs and enabling secure designs.
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Wireless EV Battery Management System
Renesas' wireless BMS removes wire harnesses, boosts flexibility, and uses Bluetooth LE for standardization.
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Connected Gateway for Future E/E Architecture
Renesas enables advanced E/E vehicle architecture with R-Car SoC, MCU, real-time tasks, and connectivity support.
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Additional Applications
- Zone control ECU
- Domain control ECU
- Communication gateway
- Chassis and safety
- Energy management