USB TYPE-C Connector

12 October 2018 - 0 Comments

USB TYPE-C Connector

USB TYPE-C Connector Pinout

USB TYPE-Cis a new port designed for high speed data exchange and high power deliver capability. The first thing to realize is that USB TYPE-C is not a new USB standard like USB1.0, USB2.0, USB3.0 and USB3.1. Those are protocols defining speed and other features, whereas USB TYPE-C is all about physical connection.

USB TYPE-C specificationwas published by USB Implementers Forum (USB-IF) and was finalized in August 2014. It is a24 pin USB connector, which is distinguished by its two-fold rotationally-symmetrical connector as shown in above picture.

USB -C connectoris designed for replacing USB-A and USB-B connectors. It is also designed for supporting USB3.1 standard fully. It is now poised to become the universal port.

USB Type-C Pin Configuration

As mentioned earlier USB-C is a 24 pin connector and we will describe the each pin below.

Pin	Name	Description
A1	GND	地面
A2	SSTXp1	Super Speed differential pair 1, TX, positive
A3	SSTXn1	SuperSpeed differential pair 1, TX, negative
A4	VBUS	Bus power
A5	CC1	Configuration channel
A6	Dp1	USB 2.0微分对1,正面的
A7	Dn1	USB 2.0 differential pair 1, negative
A8	SBU1	Side Band Use (SBU)
A9	VBUS	Bus power
A10	SSRXn2	Super Speed differential pair 4, RX, negative
A11	SSRXp2	Super Speed differential pair 4, RX, positive
A12	GND	地面
B1	GND	地面
B2	SSTXp2	Super Speed differential pair 3, TX, positive
B3	SSTXn2	Super Speed differential pair 3, TX, negative
B4	VBUS	Bus power
B5	CC2	Configuration channel
B6	Dp2	USB 2.0 differential pair 2, positive
B7	Dn2	USB 2.0 differential pair 2, negative
B8	SBU2	Side Band Use (SBU)
B9	VBUS	Bus power
B10	SSRXn1	Super Speed differential pair 2, RX, negative
B11	SSRXp1	Super Speed differential pair 2, RX, positive
B12	GND	地面

The awkward fumble over connecting a pen drive to USB port is finally over with USB-C. The orientation needs to be correct for connecting a pen drive to a USB-A port where as in USB-C port it is not necessary. You can connect devices irrespective of orientation to the USB-C and the port will auto detect the device. So USB TYPE-C is reversible port. Also USB-C is to replace both USB-A and USB-B, so connectivity at both PC and SMART PHONE remains the same. We can connect any end of the cable to PC or SMART PHONE. The issue of connecting correct end of the cable to the PC or MOBILE will be solved permanently with USB-C port.

Features and Electrical Characteristics

High data transfer speeds up to 10Gb/s
Up to 5Amp current handling capacity
Reversible plug orientation and cable direction
Small size similar to USB2.0 micro-B
Designed to establish future USB performance needs
USB-C can replace video ports like VGA and HDMI to provide high quality video output. It can deliver Ultra HD (4K) video for good gaming and movie experience
USB-C can also replace audio output or 3.5mm jack to provide high quality audio or music in your smart phone or tablet
USB-C can also replace Ethernet port to provide high speed internet up to 1000Mb/s
USB-C can also replace SD card port, power port and all other to truly become universal port.
Operating temperature: -30ºC to +85ºC

Brief About USB TYPE-C

USB-C has become the new trend after its introduction. All the latest Laptops, Notebooks, Smart phones, Peripherals, Tablets and Memory devices are tend to be installed with USB-C. We can see new MACBOOK has only a single USB-C port to replace all other ports. In MACBOOK all the functions are done by that single port. Also GOOGLE CHROME BOOK PIXEL and new smart phones are having USB-C to promote for its application in all other areas.

How to use the USB TYPE-C

As mentioned earlier the features provided by USB-C are many. With so many features in a single port comes with complex management. So we need a port controller for using USB-C port. There are different controllers available in the market like TPS65982, FUSB300C and UPD360. We have to choose the appropriate controller depending on the requirement. A typical internal circuitry for USB-C is given below.

USB Type C Internal Circuit