The RH850/D1L microcontroller has up to 4 MB flash and up to 656 KB RAM and dedicated features for instrument cluster with simple gauge system such as stepping motor controller/driver, sound generator and LCD bus interface. In addition, some products for instrument cluster with small 2D drawing such as Display Controller, Sprite Engine and video RAM with RAM wrapper are available.


  • CPU: G3M core, Max. 120MHz
  • Voltage: 2.7V to 5.5V
  • Package: 144 to 176-pin LFQFP
  • Memory: SRAM Max. 512KB, Program Flash Max. 4MB
  • Stepping motor controller/driver with zero point detection
  • Sound generator
  • LCD Bus Interface
  • Display controller (only for RH850/D1L2(H))
  • 144Kbyte Video RAM with RAM wrapper (only for RH850/D1L2(H))
  • PWM: PWM Output x 72
  • Analog function: 12-bit A/D Converter (ch) x 16
  • On-chip Oscillator Freq. (MHz): 8 MHz, Low Speed: 240 kHz
  • Others: PLL, RTC, Power-On Reset




  • Instrument Cluster


Some documents can be released under NDA.

  • RH850/D1x Group User’s Manual: Hardware Video Output Warping Engine (VOWE) - Request Document
  • Functional Safety Documentation and RH850/D1L/D1M Group ICUSD User's Manual: Hardware - Request Documents

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
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
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
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
Renesas MCAL
Renesas' MCAL (Microcontroller Abstraction Layer) software drivers can be obtained as a stand-alone software package.
Software Package Renesas
Code Flash Libraries (Flash Self Programming Libraries)
Libraries for the reprogramming of code area flash memory, including EEPROM emulation libraries for the code areas of 78K-family products
Self Programming Library (Flash Library) Renesas
Data Flash Libraries
Libraries for the reprogramming of data flash memory, including EEPROM emulation libraries for the data areas of RL78-family products
Self Programming Library (Flash Library) Renesas
7 items

Software Downloads

Sample Code