With the popularity of a large number of digital devices, especially the popularity of MP3 and digital cameras, USB devices around us gradually more up. However, although these devices are using the USB interface, but the data lines of these devices are not exactly the same. These data lines are the same at the end connected to the PC, but when connecting the device end, various interfaces are usually used for volume considerations. The following is a brief introduction to various applications of the Mini sub interface.
B-5Pin
This interface can be said to be the most common kind of interface. This interface is winning the attention of more and more manufacturers because of its outstanding anti-misinsertion performance and compact size. Nowadays, this interface is widely used in card readers, MP3, digital cameras and mobile hard disks.
B-4Pin
This interface is common in the following brands of digital products: Olympus C series and E series, most of Kodak's digital cameras, Samsung's MP3 products (such as Yepp),SONY's DSC series, Compaq's IPAQ series products.
There is another form of Mini B 4Pin, which is Mini B 4Pin Flat. As the name implies, this interface is flatter than the Mini B- type 4Pin and is widely used in equipment.
B-8Pin
Mini B型8Pin Round
Compared with the previous common type, this interface is to change the original D-type joint into a circular joint, and to prevent accidental insertion, a protrusion is designed on one side.
This kind of connector can be seen in some Nikon digital cameras, CoolPix series is more common. Although Nikon has always insisted on using this interface, in some newer models, such as D100 and CP2000, the Mini B 5Pin interface with the highest popularity is also used.
B-8Pin-2 × 4
This interface is also a relatively common interface, such as iRiver's famous MP3 series, which is known as the "iron triangle" 180TC, and many other products in this series use this interface. The application range of this interface is still wide, but after iRiver completely changed from 3XX series to Mini B 5Pin interface, this specification is obviously not as eye-catching as Mini B 5Pin.
Micro USB
Complies with USB2.0 specification, supports 12Mbit/s data transfer rate. The module will control pins according to the Microport interface for easy connection to the host controller supporting the Microport interface.
On October 26, 2009, ITU ITU-T Study Group 5 (SG5) plenary meeting held in Geneva, Switzerland completed the discussion and adoption of the framework standard "Power Adapter and Charger Scheme for Universal Mobile Terminals and Other ICT Equipment" and applied for approval. This actually means that the world will be unified mobile phone charger standards.
Type-C
Type-C is a new form of USB interface, which is accompanied by the latest USB 3.1 standard. Released by the USB-IF Organization in August 2014, it is a brand-new interface formulated by the USB Standardization Organization to solve the disadvantages of USB interface such as inconsistent physical interface specifications and one-way transmission of electric energy. It integrates charging, display, data transmission and other functions. The biggest feature of the Type-C interface is that it supports positive and negative insertion in two directions, which formally solves the worldwide problem of "USB can never be inserted", and the positive and negative sides can be inserted casually.
The characteristics of the TYPE-C hardware interface are obvious, mainly the following points:
(1) Support positive and negative symmetrical insertion and removal to solve the problem that reverse insertion cannot be inserted in practical applications;
(2) The interface is thin, which can support thinner and thinner devices, and can make the design of portable devices thinner and smaller;
(3) Support higher power transmission, up to 100 watts, and support more high-power load equipment.
(4) Support single-port and dual-port TYPE-C, flexible application.
(5) Support bidirectional power transmission, both power transmission and power reception.