USB-C - Knowledge (XXG)

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This bandwidth notation considers the various USB standards and how they use the cable. A Gen 1 / 5 Gbit/s cable supports that bandwidth on every one of its 4 wire pairs. So technically it could be used to establish a USB3 Gen 1x2 connection with nominally 10 Gbit/s between two "SuperSpeed USB 20 Gbps" capable hosts. For a similar reason, the "USB 10Gbps" name is deprecated, as that is using only 2 of the 4 wire-pairs of a Gen 2 cable and thus synonymous with "USB 20Gbps" cables. The signal quality that the "Gen A" notation guarantees or requires is not uniform across all USB standards. See table for details.

218:, a USB-C cable connects either way; and for interoperation with older equipment, there are cables with a Type-C plug at one end and either a Type-A (host) or a Type-B (peripheral device) plug at the other. The designation "C" refers only to the connector's physical configuration, or form factor, not to be confused with the connector's specific capabilities, such as Thunderbolt 3, DisplayPort 2.0, or USB 3.2 Gen 2x2. Based on the protocols supported by both devices, host and peripheral device, a USB-C connection normally provides (much) higher signalling and therefore data rates than the superseded connectors. 129: 303: 4088: 235:, released in September 2017, fully replaced the USB 3.1 and USB 3.0 specifications. It preserves the former USB 3.1 SuperSpeed and SuperSpeed+ data transfer modes and introduces two additional data transfer modes by newly applying two-lane operations, with signalling rates of 10 Gbit/s (SuperSpeed USB 10 Gbps; raw data rate: 1.212 GB/s) and 20 Gbit/s (SuperSpeed USB 20 Gbps; raw data rate: 2.422 GB/s). They are only applicable with Full-Featured USB-C Fabrics (connectors, cables, hubs, host, and peripheral device) on all ends. 2388: 2358: 4327:, with 602 votes in favor, 13 against and 8 abstentions. The regulation requires that all new mobile phones, tablets, cameras, headphones, headsets, handheld video game consoles, portable speakers, e-readers, keyboards, mice, portable navigation systems, and earbuds sold in the European Union and supporting wired charging, would have to be equipped with a USB-C port and charge with a standard USB-C to USB-C cable by the end of 2024. Additionally, if these devices support fast charging, they must support 1030: 121: 1385: 2225:, released in September 2017, replaces the USB 3.1 specification. It preserves existing USB 3.1 SuperSpeed and SuperSpeed+ data modes and introduces two new SuperSpeed+ transfer modes over the USB-C connector using two-lane operation, doubling the signalling rates to 10 and 20 Gbit/s (raw data rate 1 and ~2.4 GB/s). USB 3.2 is only supported by USB-C, making previously used USB connectors obsolete. 2325: 2275: 339:

and typically have no forward compatibility to future standards. Optical cables are even allowed to further reduce the backwards compatibility. For example, an active cable may not be able to use all high speed wire-pairs in the same direction (as used for DisplayPort connections), but only in the symmetric combinations expected by classic USB connections. Passive cables have no such limitations.

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pin of the USB-C receptacle resulting in a short-to-VBUS electrical issue due to the fact that the VBUS pin is rated up to 20 V while the CC pins are rated up to 5.5 V. To overcome these issues, USB Type-C port protection must be used between a USB-C connector and a USB-C Power Delivery controller.

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When an active set of USB-C headphones or adapter is used, digital audio is sent through the USB-C port. The conversion by the DAC and amplifier is done inside of the headphones or adapter, instead of on the phone. The sound quality is dependent on the headphones/adapter's DAC. Active adapters with a

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When a defective USB-C cable or power source is used, the voltage seen by a USB-C device can be different from the voltage expected by the device. This may result in an overvoltage on the VBUS pin. Also due to the fine pitch of the USB-C receptacle, the VBUS pin from the cable may contact with the CC

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not used when a USB 3.x connection is active, but devices like hubs open simultaneous 2.0 and 3.x uplinks in order to allow operation of both types of devices connected to it. Other devices may have the ability to fall back to 2.0, in case the 3.x connection fails. For this, it is important that

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In order to achieve longer cable lengths, cable variants with active electronics to amplify the signals also exist. The Type-C standard mostly mandates these active cables to behave similar to passive cables with vast backwards compatibility. But they are not mandated to support all possible features

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The USB Implementers Forum certifies valid cables so they can be marked accordingly with the official logos and users can distinguish them from non-compliant products. There have been simplifications in the logos. Previous logos and names also referenced specific USB protocols like SuperSpeed for the

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The USB-C standard simplifies usage by specifying cables having identical plugs on both ends, which can be inserted without concern about orientation. When connecting two devices, the user can plug either end of the cable into either device. The plugs are flat, but will work if inserted right-side-up

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instead of the specification mandated 56 kΩ pull-up, causing a device connected to the cable to incorrectly determine the amount of power it is permitted to draw from the cable. Cables with this issue may not work properly with certain products, including Apple and Google products, and may even

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All Thunderbolt 3 controllers support both Thunderbolt Alternate Mode and DisplayPort Alternate Mode. Because Thunderbolt can encapsulate DisplayPort data, every Thunderbolt controller can either output DisplayPort signals directly over DisplayPort Alternative Mode or encapsulated within Thunderbolt

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As of 2018, five system-defined Alternate Mode partner specifications exist. Additionally, vendors may support proprietary modes for use in dock solutions. Alternate Modes are optional; Type-C features and devices are not required to support any specific Alternate Mode. The USB Implementers Forum is

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An Alternate Mode dedicates some of the physical wires in a USB-C cable for direct device-to-host transmission using non-USB data protocols, such as DisplayPort or Thunderbolt. The four high-speed lanes, two side-band pins, and (for dock, detachable device and permanent-cable applications only) five

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USB-C devices may optionally provide or consume bus power currents of 1.5 A and 3.0 A (at 5 V) in addition to baseline bus power provision; power sources can either advertise increased USB current through the configuration channel or implement the full USB Power Delivery specification

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of power according to the USB PD specification. Cables are also allowed to support up to 5 A (with 20 V limit up to 100 W of power). Although the 20 V limit for 5 A cables has been deprecated in favor of 50 V. The combination of higher voltage support and 5 A current support

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On the other hand, when a passive adapter is used, digital-to-analog conversion is done on the host device and analog audio is sent through the USB-C port. The sound quality is dependent on the phone's onboard DAC. Passive adapters are only compatible with devices that output analog audio, adhering

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In Alternate Modes one of up to four high speed links are used in whatever direction is needed. SBU1, SBU2 provide an additional lower speed link. If two high speed links remain unused, then a USB 3.0/3.1 link can be established concurrently to the Alternate Mode. One of the CC pins is used to

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This means many USB-A–to–USB-C cables will only work in the A to C direction (connecting to a USB-C devices, e.g. for charging) as they do not include the termination resistors needed to work in the C to A direction (from a USB-C host). Adapters or cables from USB-C to a USB-A receptacle usually do

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USB 2.0 Billboard Device Class is defined to communicate the details of supported Alternate Modes to the computer host OS. It provides user readable strings with product description and user support information. Billboard messages can be used to identify incompatible connections made by users. They

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Plug insertions detection is performed by the TRRS plug's physical plug detection switch. On plug insertions, this will pull down both CC and VCONN in the plug (CC1 and CC2 in the receptacle). This resistance must be less than 800 ohms which is the minimum "Ra" resistance specified in the USB

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Using Full-Featured Type-C cables for Alternate Mode connections provides some benefits. Alternate Mode does not employ USB 2.0 lanes and the configuration channel lane, so USB 2.0 and USB Power Delivery protocols are always available. In addition, DisplayPort and MHL Alternate Modes can

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Gbit/s with cable length up to 0.5 m) Alternate Mode Type-C ports can be interconnected with standard passive Full-Featured USB Type-C cables. These cables are only marked with standard "trident" SuperSpeed USB logo (for Gen 1 mode only) or the SuperSpeed+ USB 10 Gbit/s logo on both

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because a plug may be inserted into a receptacle in either of two orientations. Electrically, USB-C plugs are not symmetric, as can be seen in the tables of pin layouts. Also the two ends of the USB-C are electrically different, as can be seen in the table of cable wiring. The illusion of symmetry

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are not compatible with the USB-C standard. Qualcomm responded that it is possible to make fast-charge solutions fit the voltage demands of USB-C and that there are no reports of problems; however, it did not address the standard compliance issue at that time. Later in the year, Qualcomm released

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microphone pin MIC, and the analog ground AGND, the latter being a return path for both outputs and the microphone. Nevertheless, the MIC and AGND pins must have automatic swap capability, for two reasons: firstly, the USB-C plug may be inserted either side; secondly, there is no agreement, which

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Full-Featured cables exist in 4 different speed grades. Their technical names use the "Gen A" notation, each higher number increasing capabilities in terms of bandwidth. The user-facing names are based on the bandwidth a user can typically expect "USB 5Gbps", "USB 20Gbps", "USB 40Gbps" and so on.

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Type-C cables can be split among various categories and subcategories. The first one is USB 2.0 or Full-Featured. Like the names imply, USB 2.0 Type-C cables have very limited wires and are only good for USB 2.0 communications and power delivery. They are also called charging cables colloquially.

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It is also used on USB-C docks designed to connect a device to a power source, external display, USB hub, and optional extra (such as a network port) with a single cable. These functions are sometimes implemented directly into the display instead of a separate dock, meaning a user connects their

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All Type-C cables except the minimal combination of USB 2.0 and only 3 A must contain E-Marker chips that identify the cable and its capabilities via the USB PD protocol. This identification data includes information about product/vendor, cable connectors, USB signalling protocol (2.0, Gen speed

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Currently, DisplayPort is the most widely implemented alternate mode, and is used to provide video output on devices that do not have standard-size DisplayPort or HDMI ports, such as smartphones and laptops. All Chromebooks with a USB-C port are required to support DisplayPort alternate mode in

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In this mode, all digital circuits are disconnected from the connector, and certain pins become reassigned for analog outputs or inputs. The mode, if supported, is entered when both CC pins are shorted to GND. D− and D+ become audio output left L and right R, respectively. The SBU pins become a

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Gbit/s) Alternate Mode with cables longer than 0.8 m requires active Type-C cables that are certified and electronically marked for high-speed Thunderbolt 3 transmission, similarly to high-power 5 A cables. These cables are marked with a Thunderbolt logo on both ends. They do not

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ends). However, exactly two types of adapter with USB-C plugs are defined: one with a Standard-A receptacle (for connecting a legacy device (such as a flash drive—not a cable) to a modern host, and supporting up to USB 3.1), and one with a Micro-B receptacle (for connecting a modern device to a

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All older USB connectors (all Type-A and Type-B) are designated legacy. Connecting legacy and modern, USB-C equipment requires either a legacy cable assembly (a cable with any Type-A or Type-B plug on one end and a Type-C plug on the other) or, in very specific cases, a legacy adapter assembly.

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In this mode, all digital circuits are disconnected from the connector, and the 14 bold pins can be used to expose debug related signals (e.g. JTAG interface). USB IF requires for certification that security and privacy consideration and precaution has been taken and that the user has actually

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in the previous specification. With USB-C, when two such devices are connected, the roles are first randomly assigned, but a swap can be commanded from either end, although there are optional path and role detection methods that would allow equipment to select a preference for a specific role.

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The USB-C standard attempts to eliminate the need to have different cables for other communication technologies, such as Thunderbolt, PCIe, HDMI, DisplayPort, Wifi and more. USB-C cables can contain circuit boards and processors giving them much more capability than simple circuit connections.

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results from how devices respond to the cable. Software makes the plugs and cables behave as though they are symmetric. According to the specifications, "Determination of this host-to-device relationship is accomplished through a Configuration Channel (CC) that is connected through the cable."

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A device with a USB-C port may support analog headsets through an audio adapter with a 3.5 mm jack, providing three analog audio channels (left and right output and microphone). The audio adapter may optionally include a USB-C charge-through port to allow 500 mA device charging. The

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After entering debug accessory mode, optional orientation detection via the CC1 and CC2 is done via setting CC1 as a pullup of Rd resistance and CC2 pulled to ground via Ra resistance (from the test system Type-C plug). While optional, orientation detection is required if USB Power Delivery

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An older device can connect to a modern (USB-C) host by using a legacy cable, with a Standard-B, Mini-B, or Micro-B plug on the device end and a USB-C plug on the other. Similarly, a modern device can connect to a legacy host by using a legacy cable with a USB-C plug on the device end and a

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and GND provide 5 V up to 900 mA, in accordance with the USB 3.1 specification. A specific USB-C mode may also be entered, where 5 V at nominal either 1.5 A or 3 A is provided. A third alternative is to establish a USB Power Delivery (USB-PD) contract.

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The USB Type-C Locking Connector Specification was published 2016-03-09. It defines the mechanical requirements for USB-C plug connectors and the guidelines for the USB-C receptacle mounting configuration to provide a standardized screw lock mechanism for USB-C connectors and

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While it is not necessary for USB-C compliant devices to implement USB Power Delivery, for USB-C DRP/DRD (Dual-Role-Power/Data) ports, USB Power Delivery introduces commands for altering a port's power or data role after the roles have been established when a connection is

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There is only a single non-SuperSpeed differential pair in the cable. If this pin is not connected in the plug/cable, reversing the connector does not work. If this pin is connected in common in the plug with the corresponding A side pins, reversing the connector does

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specification uses one of CC1 or CC2 pins for power negotiation between source device and sink device, up to 20 V at 5 A. It is transparent to any data transmission mode, and can therefore be used together with any of them as long as the CC pins are intact.

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and adapters contain powered electronics to allow for longer cables or to perform protocol conversion. The adapters for video Alternate Modes may allow conversion from native video stream to other video interface standards (e.g., DisplayPort, HDMI, VGA or DVI).

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Some non-compliant cables with a USB-C connector on one end and a legacy USB-A plug or Micro-B receptacle (receptacles also being invalid on cables) on the other end incorrectly terminate the Configuration Channel (CC) with a 10 kΩ pull-up to

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current, latency, RX/TX directionality, SOP controller mode, and hardware/firmware version. It also can include further vendor-defined messages (VDM) that detail support for Alt modes or vendor specific functionality outside of the USB standards.

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If a reversible Type-C cable is required but Power Delivery support is not, the test plug will need to be arranged as below, with CC1 and CC2 both being pulled down with an Rd resistor value or pulled up as Rp resistor value from the test plug:

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DisplayPort Alternate Mode 2.0: DisplayPort 2.0 can run directly over USB-C alongside USB4. DisplayPort 2.0 can support 8K resolution at 60 Hz with HDR10 color and can use up to 80 Gbps, which is double the amount available to USB data.

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Google's hardware requirements for manufacturers. A USB-C multiport adapter converts the device's native video stream to DisplayPort/HDMI/VGA, allowing it to be displayed on an external display, such as a television set or computer monitor.

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In the USB 3.0/3.1/3.2 mode, two or four high speed links are used in TX/RX pairs to provide 5, 10, or 20 Gbit/s (only by USB 3.2 x2 two-lane operations) signalling rates respectively. One of the CC pins is used to negotiate the mode.

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Standard-A plug on the host end. Legacy adapters with USB-C receptacles are "not defined or allowed" by the specification because they can create "many invalid and potentially unsafe" cable combinations (being any cable assembly with two

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A simple USB 2.0/1.1 device mates using one pair of D+/D− pins. Hence, the source (host) does not require any connection management circuitry, but it lacks the same physical connector so therefore USB-C is not backward compatible.

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engineering specification states that an analog headset shall not use a USB-C plug instead of a 3.5 mm plug. In other words, headsets with a USB-C plug should always support digital audio (and optionally the accessory mode).

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Many cables claiming to support USB-C are actually not compliant to the standard. These cables can, potentially, damage a device. There are reported cases of laptops being destroyed due to the use of non-compliant cables.

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Analog signals use the USB 2.0 differential pairs (Dp and Dn for Right and Left) and the two side-band use pairs for Mic and GND. The presence of the audio accessory is signaled through the configuration channel and

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The USB Type-C connector has 24 pins and is reversible. The designation "C" distinguishes it from the various USB connectors it replaced, all termed either Type-A or Type-B. Whereas earlier USB cables had a host end

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IEC 62680-1-3:2016 (2016-08-17, edition 1.0) "Universal serial bus interfaces for data and power – Part 1-3: Universal Serial Bus interfaces – Common components – USB Type-C cable and connector specification"

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TB4 & TB5 cables up to 2m length (active & passive) are "universal cables", including DP support. DP guarantees may only include the highest speeds covered by DP 1.4 for TB4 (HBR3) or DP 2.1 for TB5

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USB3 family of connections or USB4 directly. The current official names and logos have removed those references as most full-featured cables can be used for USB4 connections as well as USB3 connections.

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For any two pieces of equipment connecting over USB, one is a host (with a downstream-facing port, DFP) and the other is a peripheral device (with an upstream-facing port, UFP). Some products, such as

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and other devices released from 2014 onwards include the USB-C receptacles. However, the initial adoption of USB-C was limited by the high cost of USB-C cables and the wide use of Micro-USB chargers.

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and can carry audio, video, and other data, to connect to monitors or external drives. It can also provide and receive power, to power, e.g., a laptop or a mobile phone. It is used not only by

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Adopted as IEC specification: IEC 62680-1-4:2018 (2018-04-10) "Universal Serial Bus interfaces for data and power - Part 1-4: Common components - USB Type-C Authentication Specification"

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USB Audio Device Class 3.0 defines powered digital audio headsets with a USB-C plug. The standard supports the transfer of both digital and analog audio signals over the USB port.

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This mirroring of test signals will only provide 7 test signals for debug usage instead of 14, but with the benefit of minimizing extra parts count for orientation detection.

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An extension to the specification has added 28 V, 36 V and 48 V to support up to 240 W of power for laptops, monitors, hard disks and other peripherals.

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IEC 62680-1-3:2018 (2018-05-24, edition 3.0) "Universal serial bus interfaces for data and power – Part 1-3: Common components – USB Type-C Cable and Connector Specification"

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IEC 62680-1-3:2017 (2017-09-25, edition 2.0) "Universal serial bus interfaces for data and power – Part 1-3: Common components – USB Type-C Cable and Connector Specification"

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perform all the negotiation. An additional low band bidirectional channel (other than SBU) may share that CC pin as well. USB 2.0 is also available through D+/D− pins.

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In single-lane mode, only the differential pairs closest to the CC pin are used for data transmission. For dual-lane data transfers, all four differential pairs are in use.

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The USB Type-C Port Controller Interface Specification was published 2017-10-01. It defines a common interface from a USB-C Port Manager to a simple USB-C Port Controller.

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The external device test system (DTS) signals to the target system (TS) to enter debug accessory mode via CC1 and CC2 both being pulled down with an Rd resistor value or

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There is only a single differential pair for non-SuperSpeed data in the cable, which is connected to A6 and A7. Contacts B6 and B7 should not be present in the plug.

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support USB 3 backwards compatibility, only USB 2 or Thunderbolt. Cables can be marked for both Thunderbolt and 5 A power delivery at the same time.

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in Thunderbolt Alternate Mode. Low-cost peripherals mostly connect via DisplayPort Alternate Mode while some docking stations tunnel DisplayPort over Thunderbolt.

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No specific max. DP speed guaranteed by Type-C specification. There are different implementations of active cable implementations that may behave differently.

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additional pins can be used for Alternate Mode transmission. The modes are configured using vendor-defined messages (VDM) through the configuration channel.

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Maximum cable lengths are not normative, but simply estimates of the USB specification, based on the expected physical limits of conventional copper cables.

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Apple iPhone 15, Moto Z/Z Force, Moto Z2/Z2 Force/Z2 Play, Moto Z3/Z3 Play, Sony Xperia XZ2, Huawei Mate 10 Pro, Huawei P20/P20 Pro, Honor Magic2, LeEco,

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and DACs that do not require special drivers, and USB-C to 3.5 mm headphone jack adapters by Apple, Google, Essential, Razer, HTC, and Samsung.

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There are two modes of audio output from devices: digital and analog. There are primarily two types of USB-C audio adapters: active, e.g. those with

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Alternate Mode hosts and peripheral devices can be connected with either regular Full-Featured Type-C cables, or with converter cables or adapters:

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Whereas Full-Featured cables need to have all wires populated and in general support Alt modes and are further distinguished by their speed rating.

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SS and HS lanes are correctly aligned so that i.e. operating system messages indicating overcurrent conditions report the correct shared USB plug.

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USB4 Gen 2 has less strict signal requirements than USB 3 Gen 2. Spec compliant USB3 Gen 1 cables should support USB4 Gen 2 / 20 Gbit/s connections

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USB-C cables interconnect hosts and peripheral devices, replacing various other electrical cables and connectors, including all earlier (legacy)

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optionally appear to negotiate multiple Alternate Modes and must appear when negotiation fails between the host (source) and device (sink).

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may swap data and power roles independently using the Data Role Swap or Power Role Swap processes. This allows for charge-through hub or

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transmit on one, two, or four SuperSpeed lanes, so two of the remaining lanes may be used to simultaneously transmit USB 3.1 data.

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The USB SuperSpeed protocol is similar to DisplayPort and PCIe/Thunderbolt, in using packetized data transmitted over differential

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Quick Charge 4, which it claimed was – as an advancement over previous generations – "USB Type-C and USB PD compliant".

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Thunderbolt 3 40 Gbit/s passive cables are only possible <0.8 m due to limitations of current cable technology.

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specification released in 2019 is the first USB data transfer specification to be exclusively applicable by the Type-C connector.

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to connect to peripherals but being powered by the dock, or a computer being powered by a display, through a single USB-C cable.

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Samsung Galaxy Note 10, Samsung Galaxy S10 Lite, Sharp Aquos S2, Asus ZenFone 3, Bluedio T4S, Lenovo Tab 4, GoPro, MacBook etc.

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shall be GND and MIC, so devices equipped with a headphone jack with microphone input must be able to perform this swap anyway.

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A Samsung Galaxy S8 plugged into a DeX docking station: The monitor is displaying the PowerPoint and Word Android applications.

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Rev 2.2 was published 2022-10-18, primarily for enabling USB4 Version 2.0 (80 Gbps) over USB Type-C connectors and cables.

5718: 7012: 5012: 4981: 4531: 6293: 5153: 4846: 128: 6566: 5212: 7285: 7169: 6056: 4784: 4514: 6696: 6540: 5942:"VESA RELEASES UPDATED DISPLAYPORT ALT MODE SPEC TO BRING DISPLAYPORT 2.0 PERFORMANCE TO USB4 AND NEW USB TYPE-C DEVICES" 5885: 5457:"VESA Releases Updated DisplayPort Alt Mode Spec to Bring DisplayPort 2.0 Performance to USB4 and New USB Type-C Devices" 3318:

In regard to power, the devices are supposed to negotiate a Power Delivery contract before an Alternate Mode is entered.

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lanes with embedded clock using comparable bit rates, so these Alternate Modes are easier to implement in the chipset.

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data (two transmit and two receive pairs), two Sideband Use (SBU) pins, and two Configuration Channel (CC) pins.

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working with its Alternate Mode partners to make sure that ports are properly labelled with respective logos.

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built-in DAC have near-universal support for devices that output digital and analog audio, adhering to the

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have been proposed, although Thunderbolt 3 and later are also capable of 10 Gigabit Ethernet networking.

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The plug has only one USB 2.0 high-speed differential pair, and one of the CC pins (CC2) is replaced by V

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USB Type-C Authentication is an extension to the USB-C protocol which can add security to the protocol.

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support USB 3.1, USB-C, alternate modes, billboard device class, Power Delivery and USB Dual-Role.

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USB 3.1 can be transmitted simultaneously when the video signal bandwidth requires two or fewer lanes.

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and allows for up to 240 W (48 V, 5 A) of power according to the USB PD specification.

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and GND), however only at 5 V and 500 mA, as CC pins are unavailable for any negotiation.

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This mode also allows concurrent charging of a device exposing the analog audio interface (through V

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An increasing number of motherboards, notebooks, tablet computers, smartphones, hard disk drives,

6846:"Hands-on: Apple's new USB-C headphone adapter is your cheapest option for analog audio on Pixel" 6257:"Using the USB-C port and adapters on your MacBook (Retina, 12-inch, Early 2015) - Apple Support" 4328: 2887: 2209: 1397: 985: 868: 348: 222: 7137: 6152: 5543: 5251:"USB 3.1 and Type-C: The only stuff at CES that everyone is going to use | Ars Technica UK" 6595: 6177: 4038:

has supported USB 3.0 since kernel version 2.6.31 and USB version 3.1 since kernel version 4.6.

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wiring to Type-C plug (Figure A-2 of USB Type-C Cable and Connector Specification Release 1.3)

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A device with a Type-C connector does not necessarily implement any USB transfer protocol,

120: 7290: 4847:"Universal Serial Bus Type-C Cable and Connector Specification, Release 2.2, October 2022" 3986:

2015, supports USB 3.1, USB-C, Alternate Modes, Power Delivery, and USB Dual-Role support.

872: 6378:"USB-C Authentication Tech to Restrict Usage of Uncertified USB-C Accessories and Cables" 5572: 5629: 7381: 6430:"USB-C Authentication Program could let OEMs clampdown on 'non-compliant' USB chargers" 4175: 4051: 1384: 6510: 4690: 3873:

Type-C specification). This is essentially a direct connection to USB digital ground.

7416: 7340: 7295: 7267: 4047: 3470:

as Rp resistor value from the test plug (Rp and Rd defined in Type-C specification).

1408:

Although plugs have 24 pins, cables have only 18 wires. In the following table, the "

863: 180: 6457:"Why USB 3.1 Type-C Isn't on More Cases & Cable Factory Tour in Dongguan, China" 6127: 5285:"Thunderbolt 3 – The USB-C That Does It All | Thunderbolt Technology Community" 5096:"IEC 62680-1-3:2018 | IEC Webstore | energy, multimedia, cable, USB, LVDC" 5067:"IEC 62680-1-3:2017 | IEC Webstore | energy, multimedia, cable, USB, LVDC" 5038:"IEC 62680-1-3:2016 | IEC Webstore | energy, multimedia, cable, USB, LVDC" 4919:"USB Type-C Connectors and Cable Assemblies Compliance Document, v1.2 | USB-IF" 7422: 7218: 7211: 7204: 7197: 7155: 6871:"Google engineer warns USB-C, Qualcomm Quick Charge are incompatible - ExtremeTech" 5368: 4982:"Universal Serial Bus Type-C Cable and Connector Specification, September 21, 2019" 4352: 4289: 4285: 3023: 2496: 2482: 2324: 2113:

must not traverse end-to-end through the cable. Some isolation method must be used.

859: 271: 156: 85: 6984:"In a setback for Apple, the European Union seeks a common charger for all phones" 6925:"Qualcomm Quick Charge 4: Five minutes of charging for five hours of battery life" 4734: 2274: 6289: 2862:

The diagrams below depict the pins of a USB-C receptacle in different use cases.

4340: 4057: 2421: 2413: 2346: 2342: 2338: 2330: 2312: 2296: 283: 279: 176: 90: 6052: 4777: 4415:"IEC Formally Adopts USB Type-C, USB Power Delivery and USB 3.1 Specifications" 7396: 7355: 6434: 5807:"VirtualLink USB-C Alt Mode Announced: Standardized Connector for VR Headsets" 4762:

harvnb error: no target: CITEREFType-C_Cable_and_Connector_Specification2023 (

4719:

harvnb error: no target: CITEREFType-C_Cable_and_Connector_Specification2023 (

4332: 4063: 39: 6756: 4440:"USB Type-C Cable and Connector : Language Usage Guidelines from USB-IF" 7104: 7043:"European Parliament votes to compel USB-C charging on all portable devices" 6382: 6314: 6285: 5916: 5182: 5095: 5066: 5037: 4336: 4152:

The USB-C port can be used to connect wired accessories such as headphones.

4023: 6256: 5630:"HDMI Press Release: HDMI Releases Alternate Mode for USB Type-C Connector" 4951:"USB Type-C Cable and Connector Specification Revision 1.4, March 29, 2019" 4335:

replaced its proprietary Lightning connector with USB-C beginning with the

2820:

USB 2.0 and USB Power Delivery are available at all times in a Type-C cable

7067:"Long-awaited common charger for mobile devices will be a reality in 2024" 7017:

Internal Market, Industry, Entrepreneurship and SMEs - European Commission

5364:"Thunderbolt 3 embraces USB Type-C connector, doubles bandwidth to 40Gbps" 2100:

USB 2.0 Type-C cables do not include wires for SuperSpeed or sideband use.

17: 4293: 4054:

early 2015, supports USB 3.1, USB-C, Alternate Modes, and Power Delivery.

3979: 2433: 6405:"Apple will make USB-C accessories ask for your permission to pass data" 6053:"Termination Resistors Required for the USB Type-C Connector – KBA97180" 4757: 4714: 4229:

Apple iPhone 15, Google Pixel 2, HTC U11, Essential Phone, Razer Phone,

2461:

DisplayPort, Mobile High-Definition Link (MHL), HDMI and Thunderbolt (20

7386: 7252: 7247: 7242: 7237: 4101: 4041: 3993: 3989: 2300: 2222: 1042: 358: 232: 5013:"USB Type-C Cable and Connector Specification Revision 2.1, May, 2021" 4190:

USB-C to 3.5 mm audio adapters and USB sound cards compatibility

2886:

However, to connect a USB 2.0/1.1 device to a USB-C host, use of

2508:

Alternate Mode protocol support matrix for Type-C cables and adapters

186:

The design for the USB-C connector was initially developed in 2012 by

7401: 7345: 6567:"A Google Engineer is Testing USB Type-C Cables So You Don't Have To" 6077: 5310:"One port to rule them all: Thunderbolt 3 and USB Type-C join forces" 4029: 4003: 2890:

Rd on the CC pins is required, as the source (host) will not supply V

993: 354: 6954:"Apple opposes EU plans to make common charger port for all devices" 6816:"Android 5.0 Lollipop supports USB DAC audio devices, we go ears-on" 5485: 4117:

device to the display via USB-C with no other connections required.

397:

Overview of passive and active Type-C cables and their USB features

7130:

is included in a set of USB documents which can be downloaded from

6786:"Bring back the headphone jack: Why USB-C audio still doesn't work" 294:

USB Type-C and USB-C are trademarks of the USB Implementers Forum.

88:(Type-A and -B, and its different sizes: Standard, Mini, and Micro) 6668:"Google Engineer Reviews Defective USB Cables on Amazon - Fortune" 6231: 5515:"MHL Alternate Mode reference design for superMHL over USB Type-C" 5154:"USB Type-C Port Controller Interface Specification | USB-IF" 4086: 4035: 1383: 1028: 301: 187: 127: 119: 5719:"A new standard will allow your USB-C devices to connect to HDMI" 2305:

Thunderbolt 4 (also carries 4× PCI Express 3.0, DisplayPort 2.0,

202:(USB-IF) on August 11, 2014. In July 2016, it was adopted by the 7262: 7131: 4362: 2448: 2401: 2393: 2306: 2234: 997: 989: 379:

rating , Gen 2), passive/active construction, use of V

362: 275: 238: 172: 168: 7151: 4532:"Universal Serial Bus Type-C Cable and Connector Specification" 4394:"Universal Serial Bus Type-C Cable and Connector Specification" 7277: 7178: 6896:"Qualcomm says it's fine to fast-charge your phone over USB-C" 6596:"Be careful about which USB-C cables you buy off the Internet" 4140:

damage power sources such as chargers, hubs, or PC USB ports.

3999: 3992:

released the Extensible Host Controller Interface, supporting

315: 314:

The 24-pin double-sided connector is slightly larger than the

160: 7128: