The Original USB 2.0 specification released on April 27, 2000 USB 2.0 Adopters Agreement Errata to the USB 2.0 specification as of December 7, 2000 Mini-B connector Engineering Change Notice to the USB 2.0 specification Pull-up/pull-down Resistors Engineering Change Notice to the USB 2.0 specification Errata to the USB 2.0 specification as of May 28, 2002 Interface Association Descriptor Engineering Change Notice to the USB 2.0 specification Rounded Chamfer Engineering Change Notice to the USB 2.0 specification as of October 8, 2003 Unicode Engineering Change Notice to the USB 2.0 specification as of February 21, 2005 Inter-Chip USB Supplement Revision 1.0 as of March 13, 2006 Micro-USB Cables and Connectors Specification Revision 1.01 as of April 4, 2007 and corresponding Adopters Agreement USB 2.0 Link Power Management Addendum Engineering Change Notice to the USB 2.0 specification as of July 16, 2007 High-Speed Inter-Chip USB Electrical Specification Revision 1.0 as of September 23, 2007 Suspend Current Limit Changes Engineering Change Notice to the USB 2.0 Specification as of April 9, 2008 5V Short Circuit Withstand Requirement Change Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008 Device Capacitance Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008 Material Change Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008 USB 2.0 Phase-locked SOFs Engineering Change Notice to the USB 2.0 Specification as of December 22, 2008 Micro-USB Micro-B ID Pin Resistance and Tolerance stack-up between D+ and D- Engineering Change Notice to the MicroUSB Specification to the USB 2.0 Specification, Revision 1.01 as of December 22, 2008 Quad Type Cable Additional for Micro USB ECN as of December 29, 2009 Clarification on the Chamfer on USB 2.0 Micro Connectors ECN as of March 23, 2010 Maximum Unmating Force Value Definition to USB 2.0 Micro Connectors ECN as of March 23, 2010 "On-The-Go Supplement

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基于FE2.1芯片设计的USB2.01转7HUB ALTIUM原理图PCB+AD继承封装库文件，2层板设计，大小为49x91mm，Altium Designer 设计的工程文件，包括完整的原理图及PCB文件，可以用Altium(AD)软件打开或修改，可作为你产品设计的参考。集成封器件型号列表： Library Component Count : 10 Name Description ---------------------------------------------------------------------------------------------------- AT24CXX CAP Capacitor CRYSTAL Crystal ELECTRO1 Electrolytic Capacitor FE2.1 FUSE1 Fuse LED PHONEJACK RES2 USB

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