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This Evaluation Board is mounted with R8C/34K Group MCU, so it is suitable for software development and functional evaluation as USB Host device.
(This Evaluation Board can be used when you consider about R8C/3MK Group.)


  • This Evaluation Board has USB A receptacle and USB VBUS control IC, so it is available for USB Host device.
  • Mounted the connector for the E8a emulator manufactured by Renesas Electronics Corp.
  • This board has LCD module, LEDs, user switches as user I/F, so it is suitable for debug and functional evaluation.
  • MCU ports are extracted to the board surface as test pins, this board enables the connection of external devices.
  • The sample programs for USB function and each module of MCU are provided, you can immediately start software development and functional evaluation.
  • Attached the circuit diagram and the parts list, it is useful as a reference of circuit design and debug.


Item Specification
  • ・R5F2134CKNFP(R8C/34KGroup), Flash ROM:128KB/Data ROM:4KB/RAM:10KB
  • ・USB2.0 Function module (full-speed host function)
Debug Function
  • ・On-chip debug function with connection to E8a emulator
User I/F
  • ・RS-232C D-sub9 pin connector
  • ・Character-type LCD: features 8 characters x 2 lines( direct control from the  general-purpose I/O ports of MCU)
  • ・4 switches with A/D voltage detection
  • ・3 LEDs (direct control through general I/O ports)
MCU port test pin
  • ・17 pins (A protection circuit or a pull-up resistor are mounted
    for the pins on the board.)
Operating Voltage and Supply Source
  • ・main power supply voltage range: 5.0V(4.0V~5.5V) / 3.3V(3.0V~3.6V) *1
  • ・supply source: Stabilized power supply/E8a supply source
  • ・Power supply cable (incl. 2P connector)
External Dimensions
  • ・100mm x 65mm (not including protruding areas)




This product does not bundle with the power supply and the development tools. Prepare the following items before using this evaluation board.
- Power Supply 5V and 3V
- R8C Family C/C++ Compiler Package
- E8a emulator

Development support


If you require inquiry or the purchase for product please contact your Renesas sales engineer or Renesas distributor website.

Dispositivos alvo

Família Grupo
R8C Family

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