Shenzhen Guangjiayuan Electronic Technology Co., Ltd
Mr. Chen: 136-6225-2835 (same WeChat account)
QQ: 979285705
Miss Chen: 189-2385-0895 (same WeChat account)
QQ: 2391552662
Chen Weiting 135-3824-4786 (same WeChat account)
Tel: 86-0755-33182327
Email: gjydz88@163.com
Website: www.usb-type.com
Address: Building 10, Hongxing Gebu Qixiang, Songgang Town, Bao'an District, Shenzhen, Guangdong Province
Due to recent inquiries from our company regarding the definition and graphic explanations of USB interface pins, Shenzhen Guangjiayuan Electronics has compiled and uploaded USB pin information for customers' reference. The details are as follows:
一、USB interface definition:
As is well known, the metal contacts of the USB interface consist of four metal wires, two power cables, and two data signal cables, so signals are transmitted in series. Therefore, also known as a serial port, standard
The USB2.0 interface has a data transmission speed of up to 480Mbps. It can well meet the needs of industry and civilian use.
The output voltage and current of the USB interface are:+5V 500mA. In practical use, there is an error of plus or minus 0.2V, which is 4.8-5.2V. The four wires of the USB interface are generally red, white, and green
The black is assigned from left to right, and the specific pin definitions are as follows. It is recommended not to invert the positive and negative poles, otherwise it may damage the USB device or computer South Bridge chip, thereby
Affecting the normal use of the device.
二、USB pin definition:
Pin name illustrate Wiring color
1 VCC + 5V voltage red
2 D- Negative pole of data cable white
3 D+ Positive pole of data cable green
4 GND grounding black
三、MiniUSB interface definition:
The general arrangement is: red, white, green, black, from left to right
Definition:
Red - USB power supply: marked with the words - VCC, Power, 5V, 5VSB
Green - USB data cable: (positive) - DATA+, USBD+, PD+, USBDT+
White - USB data cable: (negative) - DATA -, USBD -, PD -, USBDT+
Black - Ground wire: GND, Ground
四、MiniUSB pin definition:
Pin name illustrate Wiring color
1 VCC + 5V voltage red
2 D- Negative pole of data cable white
3 D+ Positive pole of data cable green
4 ID permits distinction of
Micro-A- and Micro-B-Plug none
Type A:connected to Ground
Type B:not connected
5 GND grounding black
Pin Definition (Drawing):
The ID pin is usually empty and only used in OTG functions. Due to the Mini-USB interface being divided into Mini-A, B, and AB interfaces. If your system is only used as a slave, then
Then use the B interface. The system controller will determine the level of the ID pin to determine what type of device is inserted. If it is a high level, it is the B connector inserted, and the system will take control at this time
Master mode; If the ID is low, it is the A interface insertion, and the system will use the HNP conversation protocol to decide which one to use as the Master and which one to use as the Slave.
Our phones/mobile power supplies and other devices generally use B-type MiniUSB ports/micro USB interfaces. Currently, the most common ones on the market are also USB B-type interfaces, Mini
USB B-port and Micro USB B-port.
The above information is provided by Guangjiayuan Electronics for reference only!
Contact person:
Mr. Chen 136-6225-2835 (same WeChat account)
Miss Chen 189-2385-0895 (same WeChat account)
Chen Weiting 135-3824-4786 (same WeChat account)
Address:
Building 10, Hongxing Gebu Qixiang, Songgang Town, Bao'an District, Shenzhen, Guangdong Province
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