CY7C68310

CY7C68310 Description

CY7C68310 Categories

CY7C68310 Manufacturer

CY7C68310 Datasheet (PDF)

CY7C68310 Price & Availability

CY7C68310 Features

• Fixed-function mass storage device?requires no firmware code
• USB Mass Storage Class Bulk-Only specification-compliant (version 1.0)
• USB 2.0-certified (TID# 40001426)
  • Integrated USB transceiver
  • High-speed (480-Mbit) and full-speed (12-Mbit) support
  • USB Suspend/Resume, Remote Wakeup support
• Two power modes of operation?self-powered and USB bus-powered
  • Low power consumption allows for bus-powered operation
  • VBUS-powered CF support
  • True USB portable HDD support
• Compact 80-pin TQFP package with a Lead-Free option
• ATA/ATAPI-6 specification-compliant?provides support for mass storage devices larger than 137GB
• 5V tolerant inputs, 3.3V output drive
• Flexible USB descriptor and configuration retrieval sources
  • I2C-compatible serial ROM interface
  • ATA interface using vendor-specific ATA command (FBh) implemented on ATAPI or ATA device
  • Default on-chip ROM contents for manufacturing/development
• 2-Kbyte SRAM data buffer for ATA/ATAPI data transfers
• ATA interface supports ATA PIO modes 0?4, UDMA modes 0?4 (multiword DMA not supported). ATA interface operation mode is automatically selected during device initialization or manually programmed with I2C-compatible configuration data
• Automatic detection of either Master or Slave ATA/ATAPI devices
• Mode Page 5 Support?increased support for formatting removable media devices
• ATA Interrupt support for ATAPI devices?offers more robust ATA support across OS platforms
• System event notification via Vendor-specific ATA command
  • Input pin for media cartridge detection or ejection request
  • USB bus state indications (Reset, FS/HS mode of operation, Suspend/Resume, Bus/Self-powered)
• Three General Purpose I/O (GPIO) pins
• Multiple LUNs supported within a single ATAPI device
• ATA translation provides seamless ATA support with standard MSC drivers

CY7C68310 Description

The CY7C68310 implements a bridge between one USB port and one ATA/ATAPI-based mass storage device port. This bridge adheres to the Mass Storage Class Bulk-Only Transport specification, version 1.0.

The USB port of the CY7C68310 is connected to a host computer directly or via the downstream port of a USB hub. Host software issues commands and data to the CY7C68310 and receives status and data from the CY7C68310 using standard USB protocol.

The ATA/ATAPI port of the CY7C68310 is connected to a mass storage device. A 2-Kbyte buffer maximizes ATA/ATAPI data transfer rates by minimizing losses due to device seek times. The ATA interface supports ATA PIO modes 0?4, and Ultra Mode DMA modes 0?4.

The device initialization process is configurable, enabling the CY7C68310 to initialize most ATA/ATAPI devices without software intervention. The CY7C68310 can also be configured to allow software initialization of a device if initialization requirements are not supported by CY7C68310 algorithms.

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