The RH850/E2H microcontrollers operate at 400 MHz and are equipped with large-capacity code flash and RAM of the highest speed class, which is necessary for real-time control. By leveraging multiple G4MH cores, the RH850/E2M supports even more advanced functionality, and many built-in functions such as security functions for Evita Medium and functional safety (ISO 26262) functions make it easier to get the certification. Over The Air (OTA) updating for automatically updating software wirelessly to a safer control program is also supported.


  • CPU Core:
    • 400MHz core x4 (Inc. Lockstep dual core x2),
    • FPU x4, FP-SIMD x2,
  • Clock:
    • Main Oscillator: 20/40 MHz, PLL: 400 MHz
    • Internal Oscillator: 100 MHz
  • Data transfer: sDMAC / DTS
  • Timers : Engine Control Timer (ATU-V), GTM, Encoder Timer 2 units
  • Digital Filter Engine (DFE) 20 ch, 2 units
  • Analog: SAR A/D Converter 96 ch, 4 modules ,
    • Delta-Sigma A/D Converter 38 ch, 10 modules ,
    • Cyclic A/D Converter 8 ch, 1 module
  • Communication interfaces :
    • Serial Communication Interface (SCI3) 4 ch,
    • Clock Synchronous Serial Interface(CSIH) 8 ch,
    • High-Speed Bus (RHSB) 3 ch,
    • LIN/UART,LIN/Master,LIN/Slave(RLIN3) 6 ch,
    • CAN/CAN-FD 6 ch,
    • FlexRay 1 unit,
    • SENT I/F(RSENT) 20 ch,
    • High Speed Serial Peripheral Interface (HS-SPI) 1 ch,
    • High-Speed Serial I/F(RHSIF) 1 ch,
    • Ethernet 1 ch,
    • Peripheral sensor interface compliant with PSI5 Version 2.2 via the external transceiver (PSI5-S) 1 ch,
    • External Bus Interface
  • Digital Filter Engine (DFE) 20 ch, 2 units
  • Security : Hardware security module (compliant with SHE/EVITA-Medium automotive security standard)
  • Power Supply Voltage:
    • 1.025 - 1.155 V (CPU core);
    • 3.0 - 3.6 V / 4.5 - 5.5 V (I/O, System, AD converter)
  • Temperature: Tj= -40 - +150 degC




  • Automotive Powertrain


Functional Safety documentation can be released under NDA. Request Document

  • Functional Safety Documentation

Design & Development

Software & Tools

Software & Tools

Software title
Software type
E2 emulator [RTE0T00020KCE00000R]
On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
Emulator Renesas
Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C]
Programmer (Unit/SW) Renesas
Renesas Flash Programmer (Programming GUI)
Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU Renesas Synergy, DA1459x, DA1469x, DA1470x, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
Programmer (Unit/SW) Renesas
Renesas MCAL
Renesas' MCAL (Microcontroller Abstraction Layer) software drivers can be obtained as a stand-alone software package.
Software Package Renesas
IAR Embedded Workbench for Renesas RH850
IAR Embedded Workbench provides extensive support for RH850 devices. IAR Embedded Workbench is a complete set of development tools with leading optimization technology for creating powerful automotive applications.
IDE and Coding Tool IAR Systems
Green Hills Multi
Multi development environments allow to quickly develop, debug, test, and optimize embedded and real-time applications. The Green Hills optimizing compilers generate the smallest and fastest code from C, C++, and Ada.
IDE and Coding Tool Green Hills Software LLC
Wind River Diab Compiler
Wind River Diab Compiler for RH850 provides powerful optimization engine in C compiler for R850G3K/G3M cores.
Compiler/Assembler Wind River Systems, Inc.
Green Hills MULTI Device-Support-Packages
Green Hills MULTI Device-Support-Packages include all device specific files to be used with the MULTI IDE.
IDE and Coding Tool Renesas
8 items

Software Downloads

Type Title Date
Software & Tools - Other Log in to Download ZIP 428.12 MB
Software & Tools - Software Log in to Download ZIP 32.12 MB
Upgrade - IDE Log in to Download ZIP 89.87 MB 日本語
Upgrade - IDE Log in to Download ZIP 89.88 MB 日本語
Device File - Partner Tool Log in to Download ZIP 81.42 MB
Upgrade - Programmer Log in to Download ZIP 6 KB 日本語
6 items

Sample Code

Boards & Kits

Boards & Kits