The Type-C interface is a new type of universal interface, which can provide users with a more convenient and flexible interface experience. It is different from the traditional USB interface. The plug size of the Type-C interface is similar to that of the Micro USB interface, but it adopts a new structural design inside. The design concept of the Type-C interface is to provide a powerful and highly expandable interface, which is convenient for users to perform various operations such as fast charging and data transmission. Below we will introduce the definition and pin description of the Type-C interface in detail.

The pins of the Type-C interface are divided into 12, of which 6 are positive pins and 6 are negative pins. These include two high-speed differential signal paths, a power supply path, and some other communication paths. The function description of each pin is as follows:

1. Vbus (power supply pin): Vbus is the power supply pin of the Type-C interface, which can provide 5V, 9V, 15V or 20V to the outside, and can provide up to 100W of power. This pin needs to be connected to the GND pin for normal use.

2. GND (ground pin): GND is the ground pin of the Type-C interface, and often needs to be used in conjunction with the Vbus pin. When data communication or charging, these two pins need to be connected at the same time.

3. DP+/DP- (data communication pin pair): This pair of pins is used for high-speed communication of the Type-C interface, and the transmission speed can reach 10Gbps. The function of these two pins is the same as the A-C line of USB 3.1 Gen 2.

4. CC1/CC2 (CC pin): These two pins are mainly used to judge the working status of the Type-C interface and control the charging mode of the device. The CC1/CC2 pins are the only pins that support bidirectional signaling.

5. SBU1/SBU2 (SBU pin): The SBU pin is an auxiliary communication pin of the Type-C interface, which is mainly used for audio signal transmission and video signal synchronous transmission. This pin is usually used to connect external devices such as headphones and speakers.

6. VBUS (power supply channel): This pin is similar to the Vbus pin, but the difference is that it can be used to connect two Type-C devices, allowing one device to supply power to the other. This channel is generally used for pairing and power sharing between Type-C devices.

The above is the pin description of the Type-C interface. It can be seen that this new interface has extremely high communication speed, scalability, flexibility and versatility. Its wide application will greatly expand the functions of electronic equipment and user experience.