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JMicron/ JMS578 Chip Specification JMS578 SuperSpeed USB 3.0 to SATA 6.0Gb/s Bridge Controller Revision: 1.0.0 Document No.: 578-00004/Issue Date: Jan-13-2015 JMicron Technology Corporation 1F, No. 13, Innovation Road 1, Science-Based Industrial Park, Hsinchu, Taiwan 300, R.O.C. Tel: 886-3-5797389 Fax: 886-3-5799566 Website: http://www.jmicron.com Revision 1.0.0 © JMicron 2014. All rights reserved. Certificate No.: FM 84262 Copying prohibited. Page 1

JMicron/ JMS578 © Copyright JMicron Technology 2015. All Rights Reserved. Printed in Taiwan 2015 JMicron and the JMicron Logo are trademarks of JMicron Technology Corporation in Taiwan and/or other countries. Other company, product and service names may be trademarks or service marks of others. All information contained in this document is subject to change without notice. The products described in this document are NOT intended for use implantation or other life supports application where malfunction may result in injury or death to persons. The information contained in this document does not affect or change JMicron’s product specification or warranties. Nothing in this document shall operate as an express or implied license or environments, and is presented as an illustration. The results obtained in other operating environments may vary. THE INFORMATION CONTAINED IN THIS DOCUMENT IS PROVIEDE ON AN “AS IS” BASIS. In no event will JMicron be liable for damages arising directly or indirectly from any use of the information contained in this document. JMicron Technology Corporation 1F, No.13, Innovation Road 1, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C For more information on JMicron products, please visit the JMicron web site at http://www.JMicron.com or send email to sales@jmicron.com Revision 1.0.0 © JMicron 2014. All rights reserved. Page 3 Copying prohibited.

Table of Contents JMicron/ JMS578 1.1 1.2 1.3 1.4 1. Overviews.............................................................................................................6 FUNCTION OVERVIEW............................................................................6 1.1.1 FEATURES ..........................................................................................6 1.1.2 BLOCK DIAGRAM ...............................................................................7 PACKAGE DIMENSION ............................................................................8 1.2.1 QFN48 6x6mm2 (JMS578-QGBA0A)....................................................8 SUPPORT DEVICES.................................................................................9 APPLICATION EXAMPLES.......................................................................9 1.4.1 USB2.0, USB3.0 to SATA Bridge..........................................................9 2. Package Pin-Out ................................................................................................10 2.1 QFN48 .....................................................................................................10 2.2 PIN TYPE DEFINITION ...........................................................................11 2.3 SERIAL ATA INTERFACE........................................................................11 2.4 USB3.0 INTERFACE ...............................................................................11 2.5 USB2.0 INTERFACE ...............................................................................12 2.6 CRYSTAL INTERFACE ...........................................................................12 2.7 VOLTAGE REGULATOR .........................................................................12 2.8 DIGITAL POWER AND SYSTEM CONTROL INTERFACE .....................13 3. External SPI Flash..............................................................................................15 EXTERNAL FLASH PROM/EPROM .......................................................15 4. Clock & Reset.....................................................................................................17 4.1 Crystal input.............................................................................................17 4.2 Reset input ..............................................................................................17 5. Electrical Characteristics ....................................................................................18 Absolute Maximum Rating.......................................................................18 5.1 5.2 Recommended Power Supply Operation Conditions...............................18 5.3 Recommended External Clock Source Conditions ..................................18 5.4 Power Supply DC Characteristics............................................................19 5.4.1 Power On (No USB Connected).........................................................19 5.4.2 USB2.0 to SATA mode .......................................................................19 5.4.3 USB3.0 to SATA mode .......................................................................19 I/O DC Characteristics .............................................................................20 VBus Detector .........................................................................................20 Switching Power efficiency (VREG_IN) ...................................................21 Internal Linear Regulator .........................................................................22 5.5 5.6 5.7 5.8 3.1 Revision 1.0.0 © JMicron 2014. All rights reserved. Page 4 Copying prohibited.

JMicron/ JMS578 6. 5.9 Power Ripple ...........................................................................................22 5.10 Power-On Sequence ...............................................................................22 Internal Switch Regulator ...................................................................................24 PCB layout guidelines :............................................................................24 6.1 7. Performance Benchmark....................................................................................25 7.1 Platform Configuration .............................................................................25 7.2 HDD List ..................................................................................................25 7.3 Test Tool ..................................................................................................25 JMS578 Performance..............................................................................26 7.4 7.4.1 Win 7 ..................................................................................................26 7.4.2 Win 8.1 ...............................................................................................27 8. Product Naming..................................................................................................28 QFN48 6X6 mm2 ................................................................................................28 Revision 1.0.0 © JMicron 2014. All rights reserved. Page 5 Copying prohibited.

1. Overviews 1.1 FUNCTION OVERVIEW 1.1.1 FEATURES JMicron/ JMS578 Complies with Gen2i/Gen2m of Serial ATA II Electrical Specification 2.6 Complies with Gen3 of Serial ATA III Electrical Specification 3.2 Complies with USB 3.0 Specification, USB Mass Storage Class, Bulk-Only Transport Specification Complies with USB Attached SCSI Protocol (UASP) Specification Supports USB Super-Speed/High-Speed/Full-Speed Operation Supports USB2.0/USB3.0 power saving mode Supports SHA-1/SHA-256 for IEEE-1667 digest calculation Supports external SPI NVRAM for Vendor VID/PID of USB2.0/USB3.0 device controller Supports ATA/ATAPI PACKET command set 10 GPIOs for customization Provides hardware control PWM Provides software utilities for downloading the upgraded firmware code under USB2.0/USB3.0 Design for Windows XP, Windows 7, Windows 8.1 and MAC 10.7.4 or later version. Supports 30MHz external crystal Embedded 5V to 1.2V voltage regulator Embedded 5V to 3.3V linear voltage regulator (LDO) QFN48 package (6x6) Revision 1.0.0 © JMicron 2014. All rights reserved. Page 6 Copying prohibited.

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