IEC 62680-1-3:2016

IEC 62680-1-3 ®
Edition 1.0 2016-08
INTERNATIONAL
STANDARD
colour
inside
Universal serial bus interfaces for data and power –
Part 1-3: Universal Serial Bus interfaces – Common components – USB Type-
CTM cable and connector specification

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
IEC, or USB-IF at the respective address given below. Any questions about USB-IF copyright should be addressed to
the USB-IF. Enquiries about obtaining additional rights to this publication and other information requests should be
addressed to t he IEC or your local IEC member National Committee.

IEC Secretariat USB Implementers Forum, Inc.
3, rue de Varembé 3855 S.W. 153rd Drive
CH-1211 Geneva 20 Beaverton, OR 97003
Switzerland United States of America
Tel. +41 22 919 02 11 Tel. +1 503-619-0426
info@iec.ch Admin@usb.org
www.iec.ch www.usb.org
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 62680-1-3 ®
Edition 1.0 2016-08
INTERNATIONAL
STANDARD
colour
inside
Universal serial bus interfaces for data and power –

Part 1-3: Universal Serial Bus interfaces – Common components – USB Type-

CTM cable and connector specification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.120.20; 33.120.30; 35.200 ISBN 978-2-8322-3603-1

– 2 – IEC 62680-1-3:2016
© USB-IF:2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
UNIVERSAL SERIAL BUS INTERFACES FOR DATA AND POWER –

Part 1-3: Universal Serial Bus interfaces –
TM
Common components – USB Type-C
cable and connector specification

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62680-1-3 has been prepared by technical area 14: Interfaces and
methods of measurement for personal computing equipment, of IEC technical committee 100:
Audio, video and multimedia systems and equipment.
The text of this standard was prepared by the USB Implementers Forum (USB-IF). The
structure and editorial rules used in this publication reflect the practice of the organization
which submitted it.
© USB-IF:2015
The text of this standard is based on the following documents:
CDV Report on voting
100/2587/CDV 100/2681/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
A list of all parts in the IEC 62680 series, published under the general title Universal serial
bus interfaces for data and power, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 4 – IEC 62680-1-3:2016
© USB-IF:2015
INTRODUCTION
The IEC 62680 series is based on a series of specifications that were originally developed by
the USB Implementers Forum (USB-IF). These specifications were submitted to the IEC under
the auspices of a special agreement between the IEC and the USB-IF.
This standard is the USB-IF publication USB Type-C™ Cable and Connector Specification
Revision 1.1.
The USB Implementers Forum, Inc.(USB-IF) is a non-profit corporation founded by the group
of companies that developed the Universal Serial Bus specification. The USB-IF was formed
to provide a support organization and forum for the advancement and adoption of Universal
Serial Bus technology. The Forum facilitates the development of high-quality compatible USB
peripherals (devices), and promotes the benefits of USB and the quality of products that have
passed compliance testing.
ANY USB SPECIFICATIONS ARE PROVIDED TO YOU "AS IS, "WITH NO WARRANTIES
WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-
INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE. THE USB
IMPLEMENTERS FORUM AND THE AUTHORS OF ANY USB SPECIFICATIONS DISCLAIM
ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY
RIGHTS, RELATING TO USE OR IMPLEMENTATION OR INFORMATION IN THIS
SPECIFICAITON.
THE PROVISION OF ANY USB SPECIFICATIONS TO YOU DOES NOT PROVIDE YOU
WITH ANY LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY
INTELLECTUAL PROPERTY RIGHTS.
Entering into USB Adopters Agreements may, however, allow a signing company to
participate in a reciprocal, RAND-Z licensing arrangement for compliant products. For more
information, please see:
http://www.usb.org/developers/docs/http://www.usb.org/developers/devclass_docs#approved
IEC DOES NOT TAKE ANY POSITION AS TO WHETHER IT IS ADVISABLE FOR YOU TO
ENTER INTO ANY USB ADOPTERS AGREEMENTS OR TO PARTICIPATE IN THE USB
IMPLEMENTERS FORUM.”
© USB-IF:2015
Universal Serial Bus
Type-C Cable and
Connector Specification
Revision 1.1
April 3, 2015
– 6 – IEC 62680-1-3:2016
© USB-IF:2015
Hewlett-Packard Company, Intel Corporation, Microsoft Corporation,
Renesas, STMicroelectronics, and Texas Instruments
All rights reserved.
NOTE Adopters may only use the USB Type-C™ cable and connector to implement USB or
third party functionality as expressly described in this Specification; all other uses are
prohibited.
LIMITED COPYRIGHT LICENSE: The USB 3.0 Promoters grant a conditional copyright
license under the copyrights embodied in the USB Type-C Cable and Connector Specification
to use and reproduce the Specification for the sole purpose of, and solely to the extent
necessary for, evaluating whether to implement the Specification in products that would
comply with the specification. Without limiting the foregoing, use of the Specification for the
purpose of filing or modifying any patent application to target the Specification or USB
compliant products is not authorized. Except for this express copyright license, no other rights
or licenses are granted, including without limitation any patent licenses. In order to obtain any
additional intellectual property licenses or licensing commitments associated with the
Specification a party must execute the USB 3.0 Adopters Agreement. NOTE: By using the
Specification, you accept these license terms on your own behalf and, in the case where you
are doing this as an employee, on behalf of your employer.

INTELLECTUAL PROPERTY DISCLAIMER
THIS SPECIFICATION IS PROVIDED TO YOU “AS IS” WITH NO WARRANTIES
WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-
INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE. THE AUTHORS OF
THIS SPECIFICATION DISCLAIM ALL LIABILITY, INCLUDING LIABILITY FOR
INFRINGEMENT OF ANY PROPRIETARY RIGHTS, RELATING TO USE OR
IMPLEMENTATION OF INFORMATION IN THIS SPECIFICATION. THE PROVISION OF THIS
SPECIFICATION TO YOU DOES NOT PROVIDE YOU WITH ANY LICENSE, EXPRESS OR
IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS.
All implementation examples and reference designs contained within this Specification are
included as part of the limited patent license for those companies that execute the USB 3.0
Adopters Agreement.
USB Type-C™ and USB-C™ are trademarks of the Universal Serial Bus Implementers Forum
(USB-IF). All product names are trademarks, registered trademarks, or service marks of their
respective owners.
© USB-IF:2015
CONTENTS
FOREWORD . 2
INTRODUCTION . 4
Specification Work Group Chairs / Specification Editors . 15
Specification Work Group Contributors . 15
Pre-Release Draft Industry Reviewing Companies That Provided Feedback . 17
Revision History . 17
1 Introduction . 18
1.1 Purpose . 18
1.2 Scope . 18
1.3 Related Documents . 19
1.4 Conventions . 19
1.4.1 Precedence . 19
1.4.2 Keywords. 19
1.4.3 Numbering . 20
1.5 Terms and Abbreviations . 21
2 Overview . 22
2.1 Introduction . 22
2.2 USB Type-C Receptacles, Plugs and Cables . 23
2.3 Configuration Process . 25
2.3.1 DFP-to-UFP Attach/Detach Detection . 25
2.3.2 Plug Orientation/Cable Twist Detection . 25
2.3.3 Initial DFP-to-UFP (host-to-device) and Power Relationships Detection . 25
2.3.4 USB Type-C VBUS Current Detection and Usage . 26
2.3.5 USB PD Communication . 27
2.3.6 Functional Extensions . 27
2.4 Vbus . 27
2.5 Vconn . 28
2.6 Hubs . 28
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 . 29
3.1.4 Compliant USB Type-C to Legacy Adapter Assemblies . 29
3.2 USB Type-C Connector Mating Interfaces . 30
3.2.1 Interface Definition . 30
3.2.2 Reference Designs . 45
3.2.3 Pin Assignments and Descriptions . 52
3.3 Cable Construction and Wire Assignments . 54
3.3.1 Cable Construction (Informative) . 54
3.3.2 Wire Assignments . 55
3.3.3 Wire Gauges and Cable Diameters (Informative) . 57
3.4 Standard USB Type-C Cable Assemblies . 58
3.4.1 USB Full-Featured Type-C Cable Assembly . 58
3.4.2 USB 2.0 Type-C Cable Assembly. 60
– 8 – IEC 62680-1-3:2016
© USB-IF:2015
3.4.3 USB Type-C Captive Cable Assemblies . 60
3.5 Legacy Cable Assemblies . 60
3.5.1 USB Type-C to USB 3.1 Standard-A Cable Assembly . 61
3.5.2 USB Type-C to USB 2.0 Standard-A Cable Assembly . 61
3.5.3 USB Type-C to USB 3.1 Standard-B Cable Assembly . 62
3.5.4 USB Type-C to USB 2.0 Standard-B Cable Assembly . 63
3.5.5 USB Type-C to USB 2.0 Mini-B Cable Assembly . 64
3.5.6 USB Type-C to USB 3.1 Micro-B Cable Assembly . 65
3.5.7 USB Type-C to USB 2.0 Micro-B Cable Assembly . 66
3.6 Legacy Adapter Assemblies . 67
3.6.1 USB Type-C to USB 3.1 Standard-A Receptacle Adapter Assembly . 67
3.6.2 USB Type-C to USB 2.0 Micro-B Receptacle Adapter Assembly . 69
3.7 Electrical Characteristics . 69
3.7.1 Raw Cable (Informative) . 70
3.7.2 Mated Connector (Normative) . 71
3.7.3 USB Type-C to Type-C Passive Cable Assemblies (Normative) . 75
3.7.4 USB Type-C to Legacy Cable Assemblies (Normative) . 86
3.7.5 USB Type-C to USB Legacy Adapter Assemblies (Normative) . 89
3.7.6 Shielding Effectiveness Requirements (Normative) . 91
3.7.7 DC Electrical Requirements (Normative) . 92
3.8 Mechanical and Environmental Requirements (Normative) . 93
3.8.1 Mechanical Requirements . 94
3.8.2 Environmental Requirements . 97
3.9 Docking Applications (Informative) . 98
3.10 Implementation Notes and Design Guides . 99
3.10.1 EMC Management (Informative) . 99
3.10.2 Stacked and Side-by-Side Connector Physical Spacing (Informative) . 101
3.10.3 Cable Mating Considerations (Informative) . 102
4 Functional . 103
4.1 Signal Summary . 103
4.2 Signal Pin Descriptions . 103
4.2.1 SuperSpeed USB Pins . 103
4.2.2 USB 2.0 Pins . 104
4.2.3 Auxiliary Signal Pins . 104
4.2.4 Power and Ground Pins . 104
4.2.5 Configuration Pins . 104
4.3 Sideband Use (SBU) . 104
4.4 Power and Ground . 104
4.4.1 IR Drop . 104
4.4.2 VBUS . 105
4.4.3 VCONN . 106
4.5 Configuration Channel (CC) . 107
4.5.1 Architectural Overview . 107
4.5.2 CC Functional and Behavioral Requirements . 116
4.5.3 USB Port Interoperability Behavior . 134
4.6 Power . 144
4.6.1 Power Requirements during USB Suspend . 145
© USB-IF:2015
4.6.2 VBUS Power Provided Over a USB Type-C Cable . 145
4.6.3 Supporting USB PD BFSK in Addition to USB PD BMC . 148
4.7 USB Hubs . 149
4.8 Chargers . 149
4.8.1 DFP as a Power Source . 149
4.8.2 Non-USB Charging Methods . 150
4.8.3 Sinking DFP . 151
4.8.4 Charging UFP . 151
4.8.5 Charging a System with a Dead Battery . 151
4.9 Electronically Marked Cables . 151
4.10 Vconn-Powered Accessories . 153
4.11 Parameter Values . 153
4.11.1 Termination Parameters . 153
4.11.2 Timing Parameters . 154
4.11.3 Voltage Parameters . 156
4.12 Summary of Ports by Product Type . 157
5 Functional Extensions. 160
5.1 Alternate Modes . 160
5.1.1 Alternate Mode Architecture . 160
5.1.2 Alternate Mode Requirements . 160
5.1.3 Parameter Values . 162
5.1.4 Example Alternate Mode – USB/PCIe Dock . 162
5.2 Managed Active Cables . 165
5.2.1 Requirements for Managed Active Cables that respond to SOP’ and
SOP” . 165
5.2.2 Cable Message Structure. 167
5.2.3 Modal Cable Management . 167
A Audio Adapter Accessory Mode . 168
A.1 Overview. 168
A.2 Detail . 168
A.3 Electrical Requirements . 169
A.4 Example Implementations . 171
A.4.1 Passive 3,5 mm to USB Type-C Adapter – Single Pole Detection Switch . 171
A.4.2 3,5 mm to USB Type-C Adapter Supporting 500 mA Charge-Through . 171
B Debug Accessory Mode . 173

Figure 2-1 – USB Type-C Receptacle Interface (Front View) . 23
Figure 2-2 – USB Full-Featured Type-C Plug Interface (Front View) . 23
Figure 3-1 – USB Type-C Receptacle Interface Dimensions . 32
Figure 3-2 – Reference Design USB Type-C Plug External EMC Spring Contact Zones . 34
Figure 3-3 – USB Full-Featured Type-C Plug Interface Dimensions . 35
Figure 3-4 – Reference Footprint for a USB Type-C Vertical Mount Receptacle
(Informative) . 38
Figure 3-5 – Reference Footprint for a USB Type-C Dual-Row SMT Right Angle
Receptacle (Informative) . 39
Figure 3-6 – Reference Footprint for a USB Type-C Hybrid Right-Angle Receptacle
(Informative) . 40
– 10 – IEC 62680-1-3:2016
© USB-IF:2015
Figure 3-7 – Reference Footprint for a USB Type-C Mid-Mount Dual-Row SMT
Receptacle (Informative) . 41
Figure 3-8 – Reference Footprint for a USB Type-C Mid-Mount Hybrid Receptacle

(Informative) . 42
Figure 3-9 – USB 2.0 Type-C Plug Interface Dimensions . 43
Figure 3-10 – Reference Design of Receptacle Mid-Plate . 46
Figure 3-11 – Reference Design of the Retention Latch . 47
Figure 3-12 – Illustration of the Latch Soldered to the Paddle Card Ground . 47
Figure 3-13 – Reference Design of the USB Full-Featured Type-C Plug Internal EMC
Spring . 48
Figure 3-14 – Reference Design of the USB 2.0 Type-C Plug Internal EMC Spring . 49
Figure 3-15 – Reference Design of Internal EMC Pad . 50
Figure 3-16 – Reference Design of a USB Type-C Receptacle with External EMC
Springs . 51
Figure 3-17 – Reference Design for a USB Full-Featured Type-C Plug Paddle Card . 52
Figure 3-18 – Illustration of a USB Full-Featured Type-C Cable Cross Section, a
Coaxial Wire Example with VCONN . 55
Figure 3-19 – Illustration of a USB Full-Featured Type-C Cable Cross Section, a
Coaxial Wire Example without VCONN . 55
Figure 3-20 – USB Full-Featured Type-C Standard Cable Assembly . 59
Figure 3-21 – USB Type-C to USB 3.1 Standard-A Cable Assembly. 61
Figure 3-22 – USB Type-C to USB 2.0 Standard-A Cable Assembly. 62
Figure 3-23 – USB Type-C to USB 3.1 Standard-B Cable Assembly. 62
Figure 3-24 – USB Type-C to USB 2.0 Standard-B Cable Assembly. 63
Figure 3-25 – USB Type-C to USB 2.0 Mini-B Cable Assembly . 64
Figure 3-26 – USB Type-C to USB 3.1 Micro-B Cable Assembly . 65
Figure 3-27 – USB Type-C to USB 2.0 Micro-B Cable Assembly . 66
Figure 3-28 – USB Type-C to USB 3.1 Standard-A Receptacle Adapter Assembly . 68
Figure 3-29 – USB Type-C to USB 2.0 Micro-B Receptacle Adapter Assembly . 69
Figure 3-30 – Illustration of USB Type-C Mated Connector . 71
Figure 3-31 – Recommended Impedance Limits of a USB Type-C Mated Connector . 71
Figure 3-32 – Recommended Ground Void Dimensions for USB Type-C Receptacle . 72
Figure 3-33 – Recommended Differential Insertion Loss Limits . 72
Figure 3-34 – Recommended Differential Return Loss Limits . 73
Figure 3-35 – Recommended Differential Crosstalk Limits between SuperSpeed Pairs . 73
Figure 3-36 – Recommended Differential Near-End and Far-End Crosstalk Limits
between D+/D− Pair and SuperSpeed Pairs . 74
Figure 3-37 – Recommended Limits for Differential-to-Common-Mode Conversion . 74
Figure 3-38 – Illustration of Test Points for a Mated Cable Assembly . 75
Figure 3-39 – Recommended Differential Insertion Loss Requirement. 75
Figure 3-40 – Recommended Differential Return Loss Requirement . 76
Figure 3-41 – Recommended Differential Crosstalk Requirement . 76
Figure 3-42 – Recommended Differential Near-End and Far-End Crosstalk
Requirement between USB D+/D− Pair and USB SuperSpeed Pair . 77
© USB-IF:2015
Figure 3-43 – Illustration of Insertion Loss Fit at Nyquist Frequency . 78
Figure 3-44 – Input Pulse Spectrum . 79
Figure 3-45 – IMR Limit as Function of ILfitatNq . 79
Figure 3-46 – IRL Limit as Function of ILfitatNq . 81
Figure 3-47 – Differential-to-Common-Mode Conversion Requirement . 81
Figure 3-48 – Requirement for Differential Coupling between CC and D+/D− . 82
Figure 3-49 – Requirement for Single-Ended Coupling between CC and D− in USB 2.0
Type-C Cables . 83
Figure 3-50 – Requirement for Single-Ended Coupling between CC and D− in USB
Full-Featured Type-C Cables . 83
Figure 3-51 – Requirement for Differential Coupling between VBUS and D+/D− . 84
Figure 3-52 – Requirement for Single-Ended Coupling between SBU_A and SBU_B . 84
Figure 3-53 – Requirement for Single-Ended Coupling between SBU_A/SBU_B and CC . 85
Figure 3-54 – Requirement for Coupling between SBU_A and differential D+/D−, and
SBU_B and differential D+/D− . 85
Figure 3-55 – IMR Limit as Function of ILfitatNq for USB Type-C to Legacy Cable
Assembly . 89
Figure 3-56 – IRL Limit as Function of ILfitatNq for USB Type-C to Legacy Cable
Assembly . 89
Figure 3-57 – Cable Assembly Shielding Effectiveness Testing . 92
Figure 3-58 – Shielding Effectiveness Pass/Fail Criteria . 92
Figure 3-59 – LLCR Measurement Diagram . 93
Figure 3-60 – 4-Axis Continuity Test . 95
Figure 3-61 – Reference Wrenching Strength Continuity Test Fixture . 96
Figure 3-62 – Example of Wrenching Strength Test Mechanical Failure Point . 96
Figure 3-63 – Wrenching Strength Test with Cable in Fixture . 97
Figure 3-64 – USB Type-C Cable Receptacle Flange Example . 99
Figure 3-65 – EMC Guidelines for Side Latch and Mid-plate . 100
Figure 3-66 – EMC Finger Connections to Plug Shell . 100
Figure 3-67 – EMC Pad Connections to Receptacle Shell . 101
Figure 3-68 – Examples of Connector Apertures . 101
Figure 3-69 – Recommended Minimum Spacing between Connectors . 102
Figure 3-70 – Recommended Minimum Plug Overmold Clearance . 102
Figure 3-71 – Cable Plug Overmold and an Angled Surface . 102
Figure 4-1 – Cable IR Drop . 105
Figure 4-2 – Cable IR Drop for powered cables . 105
Figure 4-3 – Logical Model for Data Bus Routing across USB Type-C-based Ports . 108
Figure 4-4 – Logical Model for USB Type-C-based Ports for the Direct Connect Device . 109
Figure 4-5 – Pull-Up/Pull-Down CC Model. 110
Figure 4-6 – Current Source/Pull-Down CC Model . 110
Figure 4-7 – DFP Functional Model for CC1 and CC2 . 113
Figure 4-8 – DFP Functional Model Supporting USB PD Provider/Consumer . 114
Figure 4-9 – UFP Functional Model for CC1 and CC2 . 114
– 12 – IEC 62680-1-3:2016
© USB-IF:2015
Figure 4-10 – UFP Functional Model Supporting USB PD Consumer/Provider and
VCONN_Swap . 115
Figure 4-11 – DRP Functional Model for CC1 and CC2 . 115
Figure 4-12 – Connection State Diagram: Source . 117
Figure 4-13 – Connection State Diagram: Sink . 118
Figure 4-14 – Connection State Diagram: Sink with Accessory Support . 119
Figure 4-15 – Connection State Diagram: DRP . 120
Figure 4-16 – Connection State Diagram: DRP with Accessory and Try.SRC Support . 121
Figure 4-17 – Sink Power Sub-States . 132
Figure 4-18 – DFP to UFP Functional Model . 135
Figure 4-19 – DFP to DRP Functional Model . 136
Figure 4-20 – DRP to UFP Functional Model . 137
Figure 4-21 – DRP to DRP Functional Model – CASE 1 . 138
Figure 4-22 – DRP to DRP Functional Model – CASE 2 . 139
Figure 4-23 – DFP to DFP Functional Model . 140
Figure 4-24 – UFP to UFP Functional Model . 141
Figure 4-25 – DFP to Legacy Device Port Functional Model . 141
Figure 4-26 – Legacy Host Port to UFP Functional Model . 142
Figure 4-27 – DRP to Legacy Device Port Functional Model . 143
Figure 4-28 – Legacy Host Port to DRP Functional Model . 144
Figure 4-29 – UFP Monitoring for Current in Pull-Up/Pull-Down CC Model . 147
Figure 4-30 – UFP Monitoring for Current in Current Source/Pull-Down CC Model . 147
Figure 4-31 – USB PD over CC Pins . 148
Figure 4-32 – USB PD BMC Signaling over CC . 148
Figure 4-33 – Example implementation of CC input protection in a UFP . 149
Figure 4-34 – Electronically Marked Cable with VCONN connected through the cable . 152
Figure 4-35 – Electronically Marked Cable with SOP’ at both ends . 152
Figure 4-36 – DRP Timing. 155
Figure 5-1 – Pins Available for Reconfiguration over the Full-Featured Cable . 161
Figure 5-2 – Pins Available for Reconfiguration for Direct Connect Applications . 161
Figure 5-3 – USB/PCIe Dock Example . 163
Figure 5-4 – Managed Active Cable Plug SOP’ and SOP” Assignment . 166
Figure 5-5 – Managed Active Cable . 166
Figure A.1 – Example Passive 3,5 mm to USB Type-C Adapter . 171
Figure A.2 – Example 3.5 mm to USB Type-C Adapter Supporting 500 mA Charge-

Through . 172

Table 2-1 – Summary of power supply options . 27
Table 3-1 – USB Type-C Standard Cable Assemblies . 28
Table 3-2 – USB Type-C Legacy Cable Assemblies . 29
Table 3-3 – USB Type-C Legacy Adapter Assemblies . 30
Table 3-4 – USB Type-C Receptacle Interface Pin Assignments . 53
© USB-IF:2015
Table 3-5 – USB Type-C Receptacle Interface Pin Assignments for USB 2.0-only
Support . 54
Table 3-6 – USB Type-C Standard Cable Wire Assignments . 56
Table 3-7 – USB Type-C Cable Wire Assignments for Legacy Cables/Adapters . 57
Table 3-8 – Reference Wire Gauges for standard USB Type-C Cable Assemblies . 58
Table 3-9 – Reference Wire Gauges for USB Type-C to Legacy Cable Assemblies . 58
Table 3-10 – USB Full-Featured Type-C Standard Cable Assembly Wiring . 59
Table 3-11 – USB 2.0
...