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CY7C68300B Dataheets PDF



Part Number CY7C68300B
Manufacturers Cypress Semiconductor
Logo Cypress Semiconductor
Description (CY7C68300B / CY7C68301B / CY7C68320 / CY7C68321) EZ-USB AT2LPTM USB 2.0 to ATA/ATAPI Bridge
Datasheet CY7C68300B DatasheetCY7C68300B Datasheet (PDF)

www.DataSheet4U.com CY7C68300B/CY7C68301B CY7C68320/CY7C68321 EZ-USB AT2LP™ USB 2.0 to ATA/ATAPI Bridge 1.0 Features (CY7C68300B/CY7C68301B and CY7C68320/CY7C68321) • Support for CompactFlash and one ATA/ATAPI device • Can place the ATA interface in high-impedance (Hi-Z) to allow sharing of the ATA bus with another controller (e.g., an IEEE-1394 to ATA bridge chip or MP3 Decoder) • Support for board-level manufacturing test via USB interface • Low-power 3.3V operation • Fully compatible with n.

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www.DataSheet4U.com CY7C68300B/CY7C68301B CY7C68320/CY7C68321 EZ-USB AT2LP™ USB 2.0 to ATA/ATAPI Bridge 1.0 Features (CY7C68300B/CY7C68301B and CY7C68320/CY7C68321) • Support for CompactFlash and one ATA/ATAPI device • Can place the ATA interface in high-impedance (Hi-Z) to allow sharing of the ATA bus with another controller (e.g., an IEEE-1394 to ATA bridge chip or MP3 Decoder) • Support for board-level manufacturing test via USB interface • Low-power 3.3V operation • Fully compatible with native USB mass storage class drivers • Cypress mass storage class drivers available for Windows (98SE, ME, 2000, XP) and Mac OS X • Fixed-function mass storage device—requires no firmware code • Two power modes: Self-powered and USB bus-powered to enable bus powered CF readers and truly portable USB hard drives • Certified compliant for USB 2.0 (TID# 40460273), the USB Mass Storage Class, and the USB Mass Storage Class Bulk-Only Transport (BOT) Specification • Operates at high (480-Mbps) or full (12-Mbps) speed USB • Complies with ATA/ATAPI-6 specification • Supports 48-bit addressing for large hard drives • Supports ATA security features • Supports all ATA commands via ATACB function • Supports mode page 5 for BIOS boot support • Supports ATAPI serial number VPD page retrieval for Digital Rights Management (DRM) compatibility • Supports PIO modes 0, 3, 4, multiword DMA mode 2, and UDMA modes 2, 3, 4 • Uses one external serial EEPROM for storage of USB descriptors and device configuration data • ATA interface IRQ signal support • Support for one or two ATA/ATAPI devices 1.1 Features (CY7C68320/CY7C68321 only) • Supports HID interface or custom GPIOs to enable features such as single button backup, power-off, LED-based notification, etc. • Lead-free 56-pin QFN and 100-pin TQFP packages • CY7C68321 is ideal for battery-powered designs • CY7C68320 is ideal for self- and bus-powered designs 1.2 Features (CY7C68300B/CY7C68301B only) • Pin-compatible with CY7C68300A (using Backward Compatibility mode) • Lead-free 56-pin SSOP and 56-pin QFN packages • CY7C68301B is ideal for battery-powered designs • CY7C68300B is ideal for self- and bus-powered designs 2.0 Block Diagram SCL RESET I2C Bus Controller SDA m Misc control signals PLL .co 24 MHz XTAL ATA_EN (ATA Interface 3-state) 4U Internal Control Logic ATA Interface Control Signals eet Control ATA Interface Logic Sh 16 Bit ATA Data ata VBUS D+ D- USB 2.0 XCVR CY Smart USB FS/HS Engine 4kByte FIFO Data w.D Figure 2-1. Block Diagram • 3901 North First Street • San Jose, CA 95134 • 408-943-2600 Revised February 21, 2005 ww Cypress Semiconductor Corporation Document 38-08033 Rev. *D www.DataSheet4U.com CY7C68300B/CY7C68301B CY7C68320/CY7C68321 3.0 Applications mass storage device ports. This bridge adheres to the Mass Storage Class Bulk-Only Transport Specification and is intended for bus- and self-powered devices. The AT2LP is the latest addition to the Cypress USB mass storage portfolio, and is an ideal cost- and power-reduction path for designs that previously used the ISD-300A1, ISD300LP, or EZ-USB AT2. Specifically, the CY7C68300B/CY7C68301B includes a mode that makes it pin-for-pin compatible with the EZUSB AT2 (CY7C68300A). The USB port of the CY7C68300B/301B and CY7C68320/321 (AT2LP) are connected to a host computer directly or via the downstream port of a USB hub. Host software issues commands and data to the AT2LP and receives status and data from the AT2LP using standard USB protocol. The ATA/ATAPI port of the AT2LP is connected to one or two mass storage devices. A 4-Kbyte buffer maximizes ATA/ATAPI data transfer rates by minimizing losses due to device seek times. The ATA interface supports ATA PIO modes 0, 3, and 4, multiword DMA mode 2 and Ultra DMA modes 2, 3, and 4. The device initialization process is configurable, enabling the AT2LP to initialize ATA/ATAPI devices without software intervention. The CY7C68300B/301B and CY7C68320/321 implement a USB 2.0 bridge for all ATA/ATAPI-6 compliant mass storage devices, such as the following. • Hard drives • CD-ROM, CD-R/W • DVD-ROM, DVD-RAM, DVD+/–R/W • MP3 players • Personal media players • CompactFlash • Microdrives • Tape drives • Personal video recorders The CY7C68300B/301B and CY7C68320/321 support one or two devices in the following configurations. • ATA/ATAPI master only • ATA/ATAPI slave only • ATA/ATAPI master and slave • CompactFlash only • ATA/ATAPI slave and CompactFlash or other removable IDE master 3.1 • • • • Additional Resources CY4615B EZ-USB AT2LP Reference Design Kit USB Specification version 2.0 ATA Specification T13/1410D Rev 3B USB Mass Storage Class Bulk Only Transport Specification, www.usb.org 5.0 68300A Compatibility 4.0 Introduction The EZ-USB AT2LP™ (CY7C68300B/CY7C68301B and CY7C68320/CY7C68321) implements a fixed function bridge between one USB port and one or two ATA- or ATAPI-based Read EEPROM The CY7C68300B/301B and CY7C68320/321 are available in.


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