F-ZTAT Microcomputer On-board Writing Program is flash MCU on-board programming software for SuperH, H8S, H8 embedded systems.

Note that this product will not be further upgraded.



The "F-ZTAT Microcomputer On-board Writing Program" (hereinafter refferd to as the on-board writing program) is a program that allows the user to write data and program code to the flash memory in a flash microcomputer on board. By using the on-board writing program, the user can write new contents to flash memory in the flash microcomputer after it has been installed on a circuit board. The user can write application programs and update the contents of memory in the workspace or in the field. This will make the product development easier and allow it more flexibility.
The user can use the on-board writing function of the flash microcomputer by installing the on-board writing program to the host computer.


Notice: The Flash Development Toolkit will support the Renesas latest devices. This on-board writing program is not planned to be upgraded hereafter.


Product Lineup

  • Flash.exe Ver.5.0 (HS6400FWIW5SR)
  • Flash.exe Ver.4.0 (HS6400FWIW4SF)
  • Flash.exe Ver.3.0/3.1 (HS6400FWIW3SF)
  • Flash.exe Ver.2.0/2.1 (HS6400FWIW2SF)

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Target Devices

Family Group
SuperH RISC engine ファミリ
H8 ファミリ
H8S ファミリ

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.