Features
- Key features:
- 400MHz speed for up to 4 + up to 3 (LockStep) RH850 G4MH CPUs
- Top-level ratio of performance vs. power consumption
- Up to 10MB Flash
- Up to 1.28MB RAM
- Embedded EMU3S (Embedded motor control unit), RDC3X (Position sensor interface) and TSG3 (motor timer) for field-oriented traction motor (inverter) control
- Up to 4 x ADC (12-bit), with a maximum of 96 channels, including 6+6+0+0 Track and Hold inputs
- Up to 10 x DS-ADCs with a Digital Filter Engine
- Up to 20 x Digital Filter Engine
- GTM v4.1 vehicle motion timer
- High temperature support: up to Tj = 160°C
- State of the Art Interfaces
- 100Mbit Ethernet TSN
- CAN-FD, SPI, RHSB (MSC), RHSIF, SENT, LIN, UART, I2C, PSI5,
- SFMA (Serial flash memory interface)
- eMMC
- Support for 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
Description
The RH850/U2B is Renesas' cross-domain microcontroller series, a new generation of high-end 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/U2B automotive MCU builds on key functions from Renesas’ RH850/Ex Series for engine control and RH850/Cx Series for xEV to deliver improved performance.
This automotive-control MCU is equipped with up to four 400 megahertz (MHz) CPU cores + up to three dual-core lock-step. Each CPU core integrates virtualization support and Quality-of-Service (QoS) for X-in-1 applications. The latest hardware support technologies realize the integration of multiple ASIL D SW-partitions into one ECU while ensuring Freedom-From-Interference between the concurrently running applications to meet the ISO 26262 ASIL D standard.
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.
And the MCU incorporates a stand-alone high-performance motor-control accelerator IP (EMU3S) that works in flexible conjunction with multiple dedicated motor-control timer structures like GTM v4.1 and TSG3. As a unique feature, the embedded motor position sensor interface RDC3X (covering resolvers as well as inductive position sensors) provides the option to achieve significant BOM-cost reduction because the usually required external RDC chipset may be omitted.
Furthermore, the RH850/U2B can be used in combination with the RAA271084 PMIC optimized for the controller.
Parameters
| Attributes | Value |
|---|---|
| Program Memory (KB) | 6144, 10240 |
| RAM (KB) | 576, 1280 |
| Supply Voltage (V) | 3 - 5.5 |
| I/O Ports | 198, 266, 343 |
| Temp. Range (°C) | -40 to +160 |
| Ethernet (ch) | 1 |
| EtherCat (ch) (#) | 0 |
| SCI or UART (ch) | 0 |
| I2C (#) | 0, 2 |
| CAN (ch) | 0 |
| CAN-FD (ch) | 8 |
| Wireless | No |
| PWM Output (pin#) | 0 |
| 32-Bit Timer (ch) | 59, 114 |
| 16-Bit Timer (ch) (#) | 128 |
| 8-Bit Timer (ch) | 0 |
| Standby operable timer | No |
| 16-Bit A/D Converter (ch) | 0 |
| 14-Bit A/D Converter (ch) | 0 |
| 12-Bit A/D Converter (ch) | 64, 80, 96 |
| 10-Bit A/D Converter (ch) | 0 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 4, 8, 10 |
| 12-Bit D/A Converter (ch) | 0 |
| 8-Bit D/A Converter (ch) | 0 |
| Capacitive Touch Sensing Unit (ch) | 0 |
| Security & Encryption | Yes |
Application Block Diagrams
 | Integrated Single-Stage Onboard Charger Using Motor Winding Filter Integrated EV powertrain platform combining OBC, DC/DC, traction inverter, and control functions for higher efficiency and lower cost. |
 | 3.3kW Integrated OBC and DC/DC Integrated 3.3kW OBC and HV-to-LV DC/DC platform with a shared transformer, enabling simultaneous charging of high-voltage and low-voltage batteries. |
 | 6.6kW Single-Stage Onboard Charger (OBC) Single-stage GaN-based bidirectional onboard charger with DAB topology, delivering high efficiency, compact size, and enhanced reliability. |
 | Three-Level T-Type Traction Motor Inverter Three-level T-type traction motor inverter delivering higher efficiency, reduced EMI, and smoother motor control for next-generation 800V+ EV platforms. |
 | Inverter Reference Platform with Optimized Pulse Pattern (OPP) Efficient xEV inverter platform with OPP control for low distortion, stable torque, and fast integration. |
 | X-in-1 Electric Vehicle Unit Integrated X-in-1 EV power system for efficient motor control, charging, and DC/DC conversion. |
Additional Applications
- Zone control ECU
- Domain control ECU
- Communication gateway
- Vehicle motion applications (xEV, ICE, TCU)