Cypress specifications CY7C68300C/CY7C68301C CY7C68320C/CY7C68321C, Features, Block Diagram

CY7C68300C/CY7C68301C

CY7C68320C/CY7C68321C

EZ-USB AT2LP™ USB 2.0 to ATA/ATAPI Bridge

Features

•Fixed-function mass storage device—requires 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	I2C Bus Master
		SDA		Reset
24		PLL			Misc control signals and GPIO
MHz
XTAL
						ATA 3-state Control
			Internal Control Logic
					Control	ATA Interface
						Control Signals
						ATA
						Interface
						Logic
	VBUS	USB 2.0	CY Smart USB
USB	D+			4 kByte FIFO	Data	16 Bit ATA Data
		Tranceiver	FS/HS Engine
	D-

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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