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Cypress CY7C68321C, CY7C68320C Quad Flat Package No Leads QFN Package Design Notes, PCB Material

Models: CY7C68320C CY7C68300C CY7C68321C CY7C68301C

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Cypress CY7C68321C Quad Flat Package No Leads QFN Package Design Notes, Other Design Considerations, PCB Material

Contents

Features Block DiagramCY7C68300C/CY7C68301C CY7C68320C/CY7C68321C EZ-USB AT2LP USB 2.0 to ATA/ATAPI Bridge Applications CY7C68300A CompatibilityIntroduction CY4615C EZ-USB AT2LP Reference Design Kit USB Specification version EZ-USB AT2LP CY7C68300CCY7C68301C 56-pin SSOP EZ-USB AT2LP CY7C68300C CY7C68301C 56-pin QFN ENABLERESET# DD13 EZ-USB AT2LP CY7C68320CCY7C68321C 56-pin SSOP EZ-USB AT2LP CY7C68320C CY7C68321C 56-pin QFN ARESET#GPIO2 DD15 CY7C68320A 100-pin TQFPCY7C68321A USB D+ signal See “DPLUS, DMINUS” on page USB D-signal See “DPLUS, DMINUS” on pagepage PU 10K CY7C68300C/CY7C68301C CY7C68320C/CY7C68321C Chip reset See “RESET#” on page VBUS detection See “VBUSATAENABLE” on “ATAPUEN” on page DPLUS, DMINUSSCL, SDA XTALIN, XTALOUT SYSIRQ USB High-Speed GPIO Pins ATA Interface PinsDRVPWRVLD LOWPWR# VBUSATAENABLE RESET#ATAPUEN PWR500# Functional Overview HID Functions for Button ControlsATA Command Block ATACB Table 6. ATACB Field Descriptions ByteField Name Field Description 5-12 Operational Mode Selection Flow Operating ModesFigure 10. Operational Mode Selection Flow Bulk-Only Transport Specification . There is a vendor-specific Table 7. Command Block WrapperFused Memory Data Normal Mass Storage Mode MfgCB EEPROM Organization Figure 11. Snapshot of ‘AT2LP Blaster’ Utility Enable a delay of up to 120 ms at each read of the DRQ bit where the device data length does not match the host data“Functional Overview” on page 15 for more detail on how length. This allows the CY7C68300C/CY7C68301C to work Determines if the AT2LP is to do an SRST reset during drive returned on bits 2, 1, and 0 of EP1IN. This bit must be set to CY7C68300C/CY7C68301C CY7C68320C/CY7C68321C Configuration does not exist. The USB Mass Storage Class Bulk-Only USB Bulk Out Endpoint Interface DescriptorUSB Bulk In Endpoint Terminator Number of the channel, must be a zero based value that is Page 29 of Descriptor-Index 0 LANGID CY7C68300C/CY7C68301C CY7C68320C/CY7C68321C Descriptor-Serial Number unique serial LOADCONFIGDATA Table 12.EEPROM-related Vendor-specific Commands READCONFIGDATALabel bmRequestType Absolute Maximum Ratings DC CharacteristicsOperating Conditions AC Electrical Characteristics Ordering InformationATA Timing Characteristics USB Transceiver Characteristics Package Diagrams Figure 12. 100-Pin Thin Plastic Quad Flatpack 14 x 20 x 1.4 mm A101 Package Diagrams continued Figure 13. 56-lead Shrunk Small Outline Package Figure 14. 56-Lead QFN 8 x 8 mm LF56A General PCB Layout Recommendations For USB Mass Storage DesignsPage 39 of Other Design Considerations Quad Flat Package No Leads QFN Package Design NotesPCB Material IDE Removable Media Devices Disclaimers, Trademarks, and CopyrightsDevices With Small Buffers Document History Paged Issue DateDocument Number ECN NO