If you are considering using the M66596/R8A66597 in industrial applications, please contact Renesas Electronics Corporation or an authorized Renesas sales representative.

The R8A66597 is a USB controller with built-in Renesas original USB host and USB peripheral conforming to USB 2.0 specifications that are suitable for embedded applications. The R8A66597, a high-order product in comparison with the M66596, is a USB controller equipped with two USB ports. The R8A66597 supports all USB transfer speeds and can connect up to one tier of external hub (*1), and consequently, it can flexibly support connection for a variety of different USB peripheral functions. Also, the R8A66597 can be operated on a 3.3V single power supply, and its wide-temperature optional products (*2) make it possible to address a wide range of embedded device products. The R8A66597 is developed using Renesas' original USB-IP, and can be smoothly integrated into a system LSI.

*1 When connected by the full-speed function via the hi-speed hub, the payload of 188 bytes or lower will be supported for Isochronous type.
*2 The Part No. of the wide-temperature optional product is R8A66597DFP.




  • DVD recorders
  • Mobile devices
  • Set-top boxes
  • Audio equipment
  • Digital still cameras (DSC)
  • Digital video cameras (DVC)
  • Printers
  • Storage equipment


Type Title Date
Datasheet PDF 1.74 MB 日本語
Application Note PDF 315 KB 日本語
Application Note PDF 560 KB 日本語
Application Note PDF 708 KB 日本語
Manual - Development Tools PDF 797 KB 日本語
Manual - Development Tools PDF 391 KB 日本語
Application Note PDF 405 KB
Application Note PDF 292 KB
8 items

Design & Development

Software & Tools

Software & Tools

Software title
Software type
USB Drivers
Device drivers for USB communication using USB interface with built-in microcomputer and USB ASSP
USB Renesas
1 item

Sample Code