The MCU unit is a MCU-dependent hardware tool for the E100 emulator. Connecting it to the E100 emulator main unit allows you to configure a debugging environment for your target system. It is easy for the user to replace.




Applicable emulator E100
Supported MCUs H8S/Tiny Series MCUs
Applicable MCU mode Single-chip mode
Maximum ROM/RAM capacity (1) Internal flash ROM : 256KB+8KB 
000000h-03FFFFh : Program(256KB) 

F00000h-F01FFFh : Data Flash(8KB)
(2) Internal RAM : 12KB 
Maximum operating frequency  Power supply voltage :    2.7~5.5[V] 20MHz
Emulator power supply Supplied from the DC power of the emulator
Overseas standards ・European Standards: EN 55022 Class A, EN 55024 
・US FCC Standard: FCC part 15 Class A




  • MCU unit (R0E420000MCU00)
  • Flexible cable (Mounted on the MCU unit)
  • 20MHz oscillator module (Mounted on the MCU unit)
  • CD-ROM (H8S/Tiny E100 emulator software) 
    - H8S/Tiny E100 emulator debugger (Including High-performance Embedded Workshop)
    - Auto-update utility
    - User's manual

Information Supporting Development Tools

Title Description
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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.