RH850/E1M-S2 are suitable for engine control, and at 320 MHz have the highest class of operating frequency among automotive microcontrollers. The CPU core of the RH850/E1M-S2 delivers 30% better performance for engine control system applications than its predecessor. The RH850/E1M-S2 supports the SENT communication standard for sensor information, and also supports not only CAN FD for higher speed in-vehicle networks, but also ICU-S for the automotive security that will be demanded by cars going forward. It also has many built-in functions for realizing functional safety (ISO 26262) that facilitate certification.


  • CPU Core:
    • 240/320MHz core x1 (Inc. Lockstep dual core x1)
    • 80MHz core (Peripheral Control core) x1
    • FPU x1
  • Clock:
    • Main Oscillator: 20 MHz
    • PLL with selectable SSCG mode: 320/240 MHz
    • PLL without SSCG mode: 80 MHz
    • On-chip low-speed oscillator: 240 kHz
  • Data transfer: DMAC / DTS
  • Timer: Engine Control Timer (ATU-IV), Autonomous pulse adapter (APA), Motor Control Timer (TSG2) 2 ch, Timer Option (TAPA) 2 ch
  • Analog:
    • SAR A/D Converter 48 ch, 2 modules
    • ΔΣA/D Converter 8 ch, 8 modules
  • Communication Interfaces:
    • Serial Communication Interface (SCI3) 4 ch
    • Clock Synchronous Serial Interface(CSIH) 4 ch
    • High-Speed Bus (RHSB) 2 ch
    • LIN/Master (RLIN2) 1 ch, CAN/CAN-FD (Selectable) 4 ch
    • FlexRay 1 unit
    • SENT I/F(RSENT) 6 ch
  • Digital Filter Engine (DFE) 16 ch, 1 unit
  • Safety:
    • Multi-Input Signature Generator (MISG)
    • Clock Monitor
    • Watchdog Timer
    • Secure Watchdog Timer
    • Memory protection function
    • Voltage Monitor
  • Power Supply Voltage:
    • 1.15 - 1.35 V (CPU core)
    • 3.0 - 3.6 V / 4.5 - 5.5 V (I/O, System, AD converter)
  • Temperature: Tj= -40 - +150°C




Design & Development

Software & Tools

Software & Tools

Software title
Software type
RI850V4 V2 Real-time OS for RH850 Family
μITRON4.0 Specification real-time OS for RH850 Family [Required IDE : CS+]
ITRON OS Renesas
C Compiler Package for RH850 Family [CC-RH]
C Compiler Package for RH850 Family [IDE: CS+, e² studio]
Compiler/Assembler Renesas
Emulator System for RH850 and V850E2. *An MCU-dependent pods and converter boards are required.
Emulator Renesas
Simulator for CS+ of RH850 Family
Simulator for CS+ of RH850 Family [Support IDE : CS+] (Note: This product is included in Compiler Package and is not available separately.)
Simulator Renesas
Cycle-Accurate Simulator for RH850
Instruction simulator that can measure times with accuracy close to actual machine of RH850 under PC environment. For a fee. [Support IDE : CS+]
Simulator Renesas
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]
Emulator Renesas
Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0] (Note: CS+ is not generally promoted to U.S. and European customers.) (Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
IDE and Coding Tool Renesas
Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, 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, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78KR, 78K0]
Programmer (Unit/SW) Renesas
RH850 Multicore Model-Based Environment [Embedded Target for RH850 Multicore]
The Embedded Target for RH850 Multicore is a RH850 model-based multicore environment that simplifies complex driving control for the autonomous-driving era. In addition to the multicore support of the PILS tool for automatic configuration of environments, Embedded Target for Renesas CS+, it can also be interlinked with a model-based parallelization tool from eSOL Co., Ltd.
Model-Based Development Renesas
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
11 items

Software Downloads

Sample Code


Recommended Peripheral Devices

Analog/Power Device Recommended Product Features Featured Document Ordering
Power Management IC RAA270000KFT Ideal power solution for RH850/E1x/C1x. Integrated fault diagnosis and monitor functions. [Document:1218406] Contact Sales