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Renesas Flash Programmer V3

The Renesas Flash Programmer provides usable and functional support for programming the on-chip flash memory of Renesas microcontrollers in each phase of development and mass production.



  • The Renesas Flash Programmer newly supports the RA6T1 group. Learn More (Tool News) >>
  • We have released V3.08.00 of the Renesas Flash Programmer. V3.08.00 newly supports MCUs of the RA6M4 group and Linux as an operating environment. Other new features of V3.08.00 include enhanced usage of the command line. Learn More (Tool News) >>

Release Information

Orderable part number release date Free-of-charge edition
RTCZZZZZZFD0AWRJ Released: Oct 06, 2020  Details of upgrade (Tool News)  Free-of-charge edition

 User's Manual

Operating Environment

Migrating Renesas Flash Programmer from V2 to V3

Commercial Edition and Free-of-charge Edition

We have two editions of this product. The commercial edition includes technical support and the free-of-charge edition does not. There is no difference in the functionality between those editions, however, if you are going to be using the programmer for writing to the flash memory of a finished product, we recommend that you purchase the commercial edition.


  • A simple GUI makes operations easy, even for first-time developers
  • PC-controlled programming via the E2 emulator, E2 emulator Lite, E20 emulator, Segger J-Link debug probes, a serial or USB connection
  • Interoperation with other software
    • The efficiency of work can be improved by, for example, writing data to many boards consecutively and retaining logs of the written data in files.
  • Batch processing
    • The sequence of operations equivalent to those from starting the GUI to specifying a project and pressing the start button can be repeated easily from the Windows command line without actually starting the GUI (Command-line options). This is very useful for programming large quantities in mass production.
  • Programming a unique code to a designated area of flash memory
  • Enhanced security against theft through the encryption of program files (Learn More >>)
  • Easier creation of projects (compared with V2) (Learn More >>)
    • Easy selection of type names. No need to select detailed type names for products of the RL78 family.
    • Easy setting of mode pins for RX family products.
  • Improvements in processing speed (compared with V2)
    • The programming time has been shortened by approximately 10 percent.
    • In the case of the RL78 family, programming times have been shortened by up to 50 percent.
      Note: These data were gathered under specific conditions, and we do not guarantee a specific increase in speed.


  • Supported file formats for programming: Intel HEX for HEX and HCUHEX files, Motorola S for HEX and HCUHEX files, and RPI for RPI file
  • Check sum of program files
  • Blank check, erase, writing, verification, read-out, security setting, checksum, autoprocedure, setup and acquisition of flash options
  • Sequential execution of multiple commands (for erasure, programming, verification, etc.)
  • Multiple files for programming selectable simultaneously

Enhanced security against theft through the encryption of program files

The new function for encrypting program files enhances security against theft.
You can run this function by using the encryption utility program (RPE.exe) from the command line. The file is among those installed by the Renesas Flash Programmer installer.

Easier Creation of Projects

Easy selection of type names

No need to select detailed type names for products of the RL78 family.

Easy setting of mode pins for RX family products

No need for mode pin setting, when the recommended connection examples are used.

System Configuration

The system configuration in programming with Renesas Flash Programmer V3 is as follows.


  1. The E1 emulator is also usable.


Samples of Programming Circuits

File Updated
 Sample Circuit for Programming by Using a PC's Serial Port Oct 29, 2012

As for those samples when using with the E2, E2 emulator Lite or E20 see user's manuals for the individual products. For examples of circuits for programming with use of the USB, refer to the hardware manual for the MCU you are using.

Target Devices


  1. Note that the V3 does not support the V850 family, 78K0, and 78K0R. Use Renesas Flash Programmer V2 if you are using products of these families.


Target Devices by Connection Methods

For the details, refer to  List of MCUs supported by Renesas Flash Programmer V3.

Supported devices Through on-chip debugging emulators Note1 Serial
E2 emulator E2 emulator Lite E20 emulator Segger
J-Link debug probes

MCUs with USB boot


MCUs with USB boot

Renesas Synergy

MCUs with USB boot

MCUs with USB boot
Power Management

Renesas USB Power Delivery

ICs for Motor Driver/Actuator Driver

 Available | — Not Available


  1. When using with the on-chip debugging emulators, conversion adapter is required depending on the number of pins on the target board.

Information on the discontinuation of E1 emulator production and on its successor products

We have already discontinued production of the E1 emulator due to components of the product having reached their EOL (end of life, i.e. end of production). Please click on the following link to confirm the details and our successor products.

>> Tool News: [Notification] Advance Notice of E1 Emulator Product End of Life (EOL)

Information Supporting Development Tools

Title Description
My Renesas Create a My Renesas account to use our tool download services, receive e-newsletter/update notifications, and take advantage of our other services.
e-learning Information for studying and learning about microcontrollers and microprocessors.
FAQ Frequently asked questions and useful hints for development.
Forum A forum and community site to share technical information, questions and opinions with others who use Renesas MCU's.
Tool News Tool release information and other important information.
Operating Environment Information on system requirements and operating environment for the latest version of tools.
Info on Discontinued Products A list of Renesas software and tools that have been discontinued and are no longer being offered for new projects.
Renesas Flash Programmer V2
Migration from V2 to V3 of the Renesas Flash Programmer