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CY7C68300 데이터시트 PDF




Cypress Semiconductor에서 제조한 전자 부품 CY7C68300은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 CY7C68300 기능
기능 EZ-USB AT2 USB 2.0 to ATA/ATAPI Bridge
제조업체 Cypress Semiconductor
로고 Cypress Semiconductor 로고


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CY7C68300 데이터시트, 핀배열, 회로
CY7C68300
CY7C68300
EZ-USB AT2™
USB 2.0 to ATA/ATAPI Bridge
Document #: 38-08011 Rev. *B
Page 1 of 26




CY7C68300 pdf, 반도체, 판매, 대치품
CY7C68300
1.0 Introduction
The EZ-USB AT2implements a fixed function bridge between one USB port and one ATA- or ATAPI-based mass storage device
port. This bridge adheres to the Mass Storage Class Bulk-Only Transport Specification and is intended for self-powered devices.
The USB port of the EZ-USB AT2 is connected to a host computer directly or via the downstream port of a USB hub. Host software
issues commands and data to the EZ-USB AT2 and receives status and data from the EZ-USB AT2 using standard USB protocol.
The ATA/ATAPI port of the EZ-USB AT2 is connected to a mass storage device. 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, and Ultra
DMA modes 2 and 4.
The device initialization process is configurable, enabling the EZ-USB AT2 to initialize ATA/ATAPI devices without software
intervention.
1.1 Features
Complies with USB-IF specifications for USB 2.0, the USB Mass Storage Class, and the USB Mass Storage Class
Bulk-Only Transport Specification
Operates at high (480-Mbps) or full (12-Mbps) speed
Complies with T13s ATA/ATAPI-6 Draft Specification
Supports 48-bit addressing for large hard drives
Supports PIO modes 0, 3, 4, and UDMA modes 2, 4
Uses one external serial EEPROM containing the USB device serial number, vendor and product identification data,
and device configuration data
ATA interface IRQ signal support
Support for ATA/ATAPI devices configured either as master or slave
• “ATA-Enableinput signal, which three-states all signals on the ATA interface in order to allow sharing of the bus
with another controller (e.g., an IEEE-1394 to ATA bridge chip)
Support for board-level manufacturing test via USB interface
3.3V operation for self-powered devices
56-pin SSOP and 56-pin QFN packages.
Document #: 38-08011 Rev. *B
Page 4 of 26

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CY7C68300 전자부품, 판매, 대치품
CY7C68300
IORDY
1
DMARQ 2
AVCC
3
XTALOUT 4
XTALIN
5
AGND
6
VCC
7
DPLUS
8
DMINUS 9
GND
10
VCC
11
GND
12
PU10K
13
RESERVED 14
EZ-USB AT2
CY7C68300
56-pin QFN
42 RESET#
41 GND
40 ARESET#
39 VBUS_PWR_VALID
38 CS1#
37 CS0#
36 DA2
35 DA1
34 DA0
33 INTRQ
32 VCC
31 DMACK#
30 DIOR#
29 DIOW#
Figure 2-2. 56-pin QFN
Document #: 38-08011 Rev. *B
Page 7 of 26

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