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Note: R8A66597FP is mounted on M3A-0040

R8A66597FP (USB ASSP) Utility Board M3A-0040



Utility boards equipped with the hardware needed USB communications including R8A66597FP and controlled D+/D- line impedance matching. Features two built-in PCB connectors (25-pin x 2-line) for a MCU board and split bus connections. Also equipped with 24MHz quartz-crystal oscillator, USB connector, test pin, bus mode selection switch and interface power supply change jumper switch.


  • Board size: 70 mm X 80 mm
  • Supply power VDD (1.5 V), VIF (3.3 V or 1.8 V)
  • Oscillation Frequency: f(XIN) = 24 MHz
  • Interface: 50-pin Connector X 2
  • possible to select separate bus mode or multiplex bus mode for R8A66597FP.

For details, Please refer to the following.
- Instruction Manual (PDF:228 KB)

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