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CY7C68300C Datasheet, PDF (1/42 Pages) Cypress Semiconductor – EZ-USB AT2LP™ USB 2.0 to ATA/ATAPI Bridge | |||
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CY7C68300C/CY7C68301C
CY7C68320C/CY7C68321C
EZ-USB AT2LP⢠USB 2.0 to ATA/ATAPI Bridge
Features
⢠Fixed-function mass storage deviceârequires no firmware
⢠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# 40490119), the USB
Mass Storage Class, and the USB Mass Storage Class
Bulk-Only Transport (BOT) Specification
⢠Operates at high-speed (480 Mbps) or full-speed (12 Mbps)
USB
⢠Complies with ATA/ATAPI-6 specification
⢠Supports 48 bit addressing for large hard drives
⢠Supports ATA security features
⢠Supports any ATA command with the 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, and 4, multiword DMA mode 2,
and UDMA modes 2, 3, and 4
⢠Uses one small external serial EEPROM for storage of USB
descriptors and device configuration data
⢠ATA interface IRQ signal support
⢠Supports one or two ATA/ATAPI devices
⢠Supports CompactFlash and one ATA/ATAPI device
⢠Supports board-level manufacturing test using the USB I/F
⢠Can place the ATA interface in high impedance (Hi-Z) to
allow sharing of the ATA bus with another controller (i.e., an
IEEE-1394 to ATA bridge chip or MP3 Decoder)
⢠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 operating systems
Features (CY7C68320C/CY7C68321C only)
⢠Supports HID interface or custom GPIOs to enable features
such as single button backup, power-off, LED-based notifi-
cation, etc.
⢠56-pin QFN and 100-pin TQFP lead-free packages
⢠CY7C68321C is ideal for battery-powered designs
⢠CY7C68320C is ideal for self- and bus-powered designs
Features (CY7C68300C/CY7C68301C only)
⢠Pin-compatible with CY7C68300A (using Backward
Compatibility mode)
⢠56-pin SSOP and 56-pin QFN lead-free packages
⢠CY7C68301C is ideal for battery-powered designs
⢠CY7C68300C is ideal for self- and bus-powered designs
Block Diagram
SCL
SDA
I2C Bus Master
24
MHz
PLL
XTAL
USB
VBUS
D+
D-
USB 2.0
Tranceiver
Internal Control Logic
Misc control signals and GPIO
ATA 3-state Control
Control
ATA Interface
Control Signals
ATA
Interface
Logic
CY Smart USB
FS/HS Engine
4 kByte FIFO
Data
16 Bit ATA Data
Cypress Semiconductor Corporation ⢠198 Champion Court ⢠San Jose, CA 95134-1709 ⢠408-943-2600
Document 001-05809 Rev. *A
Revised November 30, 2006
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