The M66291 is a device controller, compliant with the Full-Speed USB2.0, and featuring the Full-Speed transfer mode.


It comes with a USB transceiver circuitand supports all transfer types.

The M66291 includes a built-in 3K-byte FIFO and offers up to 7 endpoints.


The M66291 supports various DMA modes owing to the built-in DMA interface(2-ch) and selectable polarity.

In addition, the M66291 comes equipped with 2 interrupt pins, with selectablepolarity and interrupt source options, Connection to CPU of 5V power supply is available because the I/O power supply is 2.7 to 5.5V.

The M66291 is developed with Renesas' original, widely used Full-Speed USB IP,ensuring smooth upgrades to system LSIs for further developments.


For evaluation tools of this group, please click left navigation"Software and Tools".

(Note) Although "USB specification 1.1 compliant" is written in theM66291GP datasheet, the M66291 is also USB specification 2.0 compliant.

Key Applications:


  • Printer , Scanner , DSC , DVC
  • PC camera , Multimedia speaker , Terminal adapter etc.
  • Support all PC peripheral using Full Speed USB

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


Resources for Software and Hardware

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e-learning Information for studying and learning about microcontrollers and microprocessors.
FAQ Frequently asked questions and useful hints for development.
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