V CONN or CC pin on the plug may be connected to either of the configuration channel pins – CC1 or CC2 of the receptacle – depending upon the orientation. USB 2.0 signals are repeated in the top and bottom rows of the Type-C receptacle to maintain connectivity in either orientation. GND, USB 2.0 and V BUS signals maintain connection. When the Type-C plug is rotated (as shown in Figure 3): The other CC pin is repurposed as VCONN (abbreviation for V CONNECTOR ) for powering the electronics in the USB Type-C plug. The Type-C plug offers only one CC pin, which is connected to one of the CC pins of the Type-C receptacle, to establish the Type-C orientation. All power, ground, and signal pins are duplicated about the symmetry axis, which allows the Type-C plug to be flipped with respect to the Type-C receptacle. To enable Type-C cables to be reversible, the Type-C receptacle is fully symmetrical. The USB Type-C Receptacle functionally delivers both USB 3.1 (TX and RX pairs) and USB 2.0 (D+ and D−) data buses, USB power (VBUS), ground (GND), Configuration Channel signals (CC1 and CC2), and two Sideband Use (SBU) signal pins. The CC in the plug used for connection detection and interface configuration On a USB Type-C receptacle, two set of USB 2.0 signal pins are defined to enable the plug-flipping feature.
#Usb 2 vs usb 3 pins serial
The USB 2.0 serial data interface defines a differential pair. USB Type-C Plug Signals (Source: Cypress Semiconductor) SBU signals are used in the Alternate Mode supported by the Type-C specification, which enables multi-purposing of Type-C signals for alternate uses such as DisplayPort The CC channel in the receptacle detects the signal orientation and channel configuration. On a USB Type-C receptacle, two sets of USB 2.0 signal pins are defined to enable the plug-flipping feature. On a USB Type-C receptacle, two sets of SuperSpeed USB signal pins are defined to enable the plug-flipping feature. The SuperSpeed USB serial data interface defines a differential transmit pair and a differential receive pair. USB Type-C Receptacle Signals (Source: Cypress Semiconductor) Type-C Reversible Connections (Source: Cypress Semiconductor) USB Type-C: Connector of the Future (Source: Cypress Semiconductor)įigure 3. In this two part series, we describe power delivery with USB Type-C, starting with ports and connectors in this article, followed by the power delivery protocol in part two.įigure 1. For more details, watch An Introduction to USB Type-C video and Type-C Basics. This enables a wider range of applications to operate using USB (see Figure 2). Finally, the USB Type-C connector can deliver up to 100 W. Bandwidth is double that of USB 3.0, increasing to 10 Gbps with SuperSpeed+ USB3.1. Type-C allows developers to also combine multiple protocols in a single cable, including DisplayPort, PCIe or Thunderbolt. From a form factor perspective, the USB Type-C connector combines multiple USB connectors – Micro-B, Type-A, and Type-B – in a reversible connector measuring only 2.4 mm in height (see Figure 1). When paired with the new Power Delivery (PD) specification, Type-C offers enhancements to the existing USB 3.1 interconnect that lower the cost and simplify the implementation of power delivery over USB. USB Type-C is the newly introduced and powerful interconnect standard for USB.