O cabo de dados USB é usado para conexão e comunicação entre computadores e dispositivos externos, and can also be used for charging and external connection of mobile phones. Generally speaking, it is used for data transmission and charging. Then what are the main categories of USB data cables:
ordinary USB data cable
This model has no central control chip, must plug in the phone computer to recognize the line, the price is cheap. Typical models: Samsung CDMA series, D500 series; MOTOROLA E398 series, V3 series; Nokia DKU-2; NEC N720 Series; Siemens 65 series and so on.
with IC USB data cable
With a central control chip, the model of the ordinary chip is 2303, 2101, 3116, and the phone computer will recognize the line without plugging, because the price of an IC is more than 10 yuan, so the price is more expensive without an IC. The working principle of the data cable with a chip is USB to COM, which converts the USB interface into a serial port and displays it on the computer. Typical models: Samsung E638 series, D418 series; NEC N610 Series; Siemens 25 series, 55 series; SONY Ericsson mobile phone data cable; Panasonic mobile phone data cable; Lenovo mobile phone data cable and so on.
special USB data cable
This is not an ordinary popular chip, dedicated special models of chips such as: DKU-5, CA-42, DCU-11 and so on. Note: We should not mistake the quality with IC is good, the quality without IC is poor, the actual with or without IC is produced according to the applicable model of the mobile phone.
