USB Type-C Specification Release 1.3.pdf

Universal Serial Bus Type-C Cable and Connector Specification Release 1.3 July 14, 2017 CONTENTS Specification Work Group Chairs / Specification Editors ................................................... 11 Specification Work Group Contributors .................................................................................. 11 Pre-Release Draft Industry Reviewing Companies That Provided Feedback ................ 14 Revision History ............................................................................................................................. 14 1 Introduction ............................................................................................................................ 15 1.1 Purpose ......................................................................................................................... 15 1.2 Scope ............................................................................................................................. 15 1.3 Related Documents .................................................................................................... 16 1.4 Conventions ................................................................................................................. 16 1.4.1 Precedence .................................................................................................... 16 1.4.2 Keywords ...................................................................................................... 16 1.4.3 Numbering .................................................................................................... 17 1.5 Terms and Abbreviations ......................................................................................... 17 2 Overview ................................................................................................................................. 21 2.1 Introduction ................................................................................................................ 21 2.2 USB Type-C Receptacles, Plugs and Cables ......................................................... 22 2.3 Configuration Process ............................................................................................... 23 2.3.1 Source-to-Sink Attach/Detach Detection .............................................. 24 2.3.2 Plug Orientation/Cable Twist Detection ............................................... 24 2.3.3 Initial Power (Source-to-Sink) Detection and Establishing the Data (Host-to-Device) Relationship ................................................................. 24 2.3.4 USB Type-C VBUS Current Detection and Usage .................................. 25 2.3.5 USB PD Communication ............................................................................. 25 2.3.6 Functional Extensions ................................................................................ 26 2.4 VBUS ............................................................................................................................... 26 2.5 VCONN ............................................................................................................................. 27 2.6 Hubs ............................................................................................................................... 27 3 Mechanical ............................................................................................................................... 28 3.1 Overview ...................................................................................................................... 28 3.1.1 Compliant Connectors................................................................................ 28 3.1.2 Compliant Cable Assemblies .................................................................... 28 3.1.3 Compliant USB Type-C to Legacy Cable Assemblies .......................... 28 3.1.4 Compliant USB Type-C to Legacy Adapter Assemblies ..................... 29 3.2 USB Type-C Connector Mating Interfaces ............................................................ 29 3.2.1 Interface Definition .................................................................................... 29 3.2.2 Reference Designs ....................................................................................... 52 3.2.3 Pin Assignments and Descriptions ......................................................... 59 3.3 Cable Construction and Wire Assignments ......................................................... 60 3.3.1 Cable Construction (Informative) ........................................................... 60 3.3.2 Wire Assignments ....................................................................................... 62 3.3.3 Wire Gauges and Cable Diameters (Informative) ............................... 63 3.4 Standard USB Type-C Cable Assemblies .............................................................. 65 3.4.1 USB Full-Featured Type-C Cable Assembly .......................................... 65 3.4.2 USB 2.0 Type-C Cable Assembly .............................................................. 66 3.4.3 USB Type-C Captive Cable Assemblies .................................................. 67 3.5 Legacy Cable Assemblies .......................................................................................... 67 3.5.1 USB Type-C to USB 3.1 Standard-A Cable Assembly .......................... 68 3.5.2 USB Type-C to USB 2.0 Standard-A Cable Assembly .......................... 69 3.5.3 USB Type-C to USB 3.1 Standard-B Cable Assembly .......................... 70 3.5.4 USB Type-C to USB 2.0 Standard-B Cable Assembly .......................... 71 3.5.5 USB Type-C to USB 2.0 Mini-B Cable Assembly ................................... 72 3.5.6 USB Type-C to USB 3.1 Micro-B Cable Assembly ................................. 73 3.5.7 USB Type-C to USB 2.0 Micro-B Cable Assembly ................................. 75 3.6 Legacy Adapter Assemblies ..................................................................................... 76 3.6.1 USB Type-C to USB 3.1 Standard-A Receptacle Adapter Assembly 76 3.6.2 USB Type-C to USB 2.0 Micro-B Receptacle Adapter Assembly ...... 78 3.7 Electrical Characteristics ......................................................................................... 79 3.7.1 Raw Cable (Informative) ........................................................................... 79 3.7.2 USB Type-C to Type-C Passive Cable Assemblies (Normative) ....... 80 3.7.3 Mated Connector (Informative) .............................................................. 93 3.7.4 USB Type-C to Legacy Cable Assemblies (Normative) ...................... 97 3.7.5 USB Type-C to USB Legacy Adapter Assemblies (Normative) ....... 101 3.7.6 Shielding Effectiveness Requirements (Normative) ........................ 103 3.7.7 DC Electrical Requirements (Normative) ........................................... 106 3.8 Mechanical and Environmental Requirements (Normative) ........................ 109 3.8.1 Mechanical Requirements ....................................................................... 109 3.8.2 Environmental Requirements ................................................................ 115 3.9 Docking Applications (Informative) ................................................................... 116 3.10 Implementation Notes and Design Guides ........................................................ 117 3.10.1 EMC Management (Informative) ........................................................... 117 3.10.2 Stacked and Side-by-Side Connector Physical Spacing (Informative) .............................................................................................. 120 3.10.3 Cable Mating Considerations (Informative) ...................................... 120 4 Functional .............................................................................................................................. 122 4.1 Signal Summary ........................................................................................................ 122 4.2 Signal Pin Descriptions ........................................................................................... 122 4.2.1 SuperSpeed USB Pins ............................................................................... 122 4.2.2 USB 2.0 Pins ................................................................................................ 123 4.2.3 Auxiliary Signal Pins ................................................................................ 123 4.2.4 Power and Ground Pins ........................................................................... 123 4.2.5 Configuration Pins .................................................................................... 123 4.3 Sideband Use (SBU) ................................................................................................. 123 4.4 Power and Ground ................................................................................................... 123 4.4.1 IR Drop ......................................................................................................... 123 4.4.2 VBUS ............................................................................................................... 124 ... ...