The UPD78098x Group is supported only for the customers who have already adopted any of the products. For new adoption, please consider other products such as RL78/G1F Group.

Main Solutions

Key Features:

  • Operating voltage:
    • VDD = 3.0 to 5.5 V (expanded-specification products)
    • VDD = 4.0 to 5.5 V (conventional products)


  • Max. frequency: 10 MHz
  • ROM capacities: 16 KB to 60 KB mask ROM and 60 KB flash memory
  • RAM capacities: 1 KB to 2 KB
  • 64-pin plastic LQFP, SDIP package
  • Less EMI (Electro Magnetic Interference) noise than existing µPD7801x and 7801xF microcontrollers)
  • External memory expansion space: 256 bytes (except µPD780988)
  • Minimum instruction execution time: 0.166 µs (@ fX = 12 MHz operationNote), 0.238 µs (@ fX = 8.38 MHz operation)
  • Instruction set suitable for system control
    • Bit processing in entire address space
    • Multiply/divide instructions


  • I/O ports: 47
  • 10-bit resolution A/D converter: 8 channels
  • Serial interface: 3 channels
    • UART mode: 2 channels
    • 3-wire serial I/O mode: 1 channel


  • Timer: 7 channels - 10-bit inverter control timer: 1 channel - 16-bit timer/event counter: 2 channels - 8-bit timer/event counter: 3 channels - Watchdog timer: 1 channelVectored interrupts: 26


Pin Count / Memory Size Lineup:

Below you will find information to support the development of your application.
You can find an explanation of orderable part numbers here.


Resources for Software and Hardware

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