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CY4615B - Hi-speed USB 2.0-to-ATA/ATAPI Bus-Powered Reference Design (with EZ-USB AT2LP) | Cypress Semiconductor

CY4615B - Hi-speed USB 2.0-to-ATA/ATAPI Bus-Powered Reference Design (with EZ-USB AT2LP)

Last Updated: 
Jun 13, 2017

High-Speed USB to ATA (Advanced Technology Attachment)

Develop your mass storage bridge solution in hours, not weeks, using the Cypress EZ-USB AT2LP(TM)! Leveraging our existing mass storage expertise, the EZ-USB AT2LP adds large capacity drive support and ATA interrupt request (IRQ) support, all in an easy-to-use, low-cost configurable device.


  • Single-chip interface to any ATA/ATAPI or CompactFlash (Microdrives & CF) device
  • Support for ATA-6 specification for large capacity drives
  • Support for up to UDMA mode 4
  • Completely reconfigurable board to support self-powered or bus-powered applications
  • Compatibility with Windows and Mac OS class drivers, Cypress drivers available
  • Tri-state-able output lines
  • Configurable EEPROM

This reference design supports the EZ-USB AT2LP (CY7C68320/CY7C68300B) products from Cypress. It replaces the CY4615A Reference Design Kit.


Hardware Description


This reference design kit includes:

  • Evaluation Board with CY7C68320 (EZ-USB AT2LP)
  • ATA cable
  • 40-pin to 44-pin adapter
  • "Y" power adapter cable
  • USB cable
  • CY4615B Release Notes
  • EZ-USB AT2LP Datasheet
  • CD-ROM containing:
    - Hardware design databases for 2 different board layouts
               - Schematics
               - Bill of Materials
               - Gerber files
               - OrCAD files
    - EEPROM programming software
    - Manufacturing software
    - Other technical support documents

Looking for drivers? Check here for:

Windows Driver
Mac OS 9 Driver
Mac OS X Driver
DOS driver: We have EHCI and mass storage support available for DOS.  Please contact your sales representative or field applications engineer to get it.

Documentation for the kit is included with the software download on this page.