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IECUBE is a high-Performance full-spec emulator for RL78, 78K, and V850 MCUs.
Affordable in cost, it provides high-performance debugging functions such as time measurement,
coverage, and trace.
In addition, the self-diagnostic function ensures a debugging environment you can use with confidence.





  • Emulator main unit (IECUBE)
  • Softeware CD-ROM (USB driver is included.)
  • USB interface cable
  • User's Manuals

Note: For development work, a power supply adapter and options such as probe or socket compatible with the target device, all sold separately, are required.  


Optional Products (Sold Separately)

  • Check pin adapter QB-144-CA-01
    * Usable in common with RL78, 78K0R, 78K0, 78K0S, V850.
    The pin header cover corresponded to the pin arrangement of the MCU is required. You can get the pin header cover package from the following package list. Please print the package and cut out the pin header cover for using.
    Package list of pin header cover [PDF]


    [Usage of Pin Header Cover]

Power Supply Adapter (Sold Separately)

Specifications of the power supply adapter, QB-COMMON-PW-xx, vary depending on the region. Be sure to use an adapter designed for your region.



Target Devices


Below you will find information to support the development of your application.


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.
Tool Environmental Information Information on RoHS compliance 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.