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Purchase must see! Electronic component selection from entry to give up

Electronic components as an important part of electronic products, its quality is the determining factor of product performance indicators, and procurement is the decision maker who decides to purchase materials.For the procurement staff, every step must be careful, otherwise the mistakes caused by the procurement process, resulting in the company's project progress delay or even major economic losses, the purchaser needs to bear the full responsibility.To be honest, it is not easy to be a buyer, and it tak....
2024-10-24 09:16:15 26
Purchase must see! Electronic component selection from entry to give up

Basic knowledge of crystal vibration, circuit design, non-vibration reasons, circuit principle, crystal frequency, digital circuit application (crystal vibration data download)

In the standard 51 MCU system, we generally use the crystal frequency is 12MHz, and due to the architecture of the 51 MCU itself, its one machine cycle is exactly 12 clock cycles, so that the use of 12Mhz crystal can just adjust the machine cycle to 12x(1/12)us=1us.However, when communicating, 12MHz serial communication is not easy to achieve the standard baud rate (baud rate divider also needs to be divided by the system clock), such as 9600,4800.11.0592MHz can just be accurately divided into the bit rate ....
2024-04-08 17:11:32 87 :#MCU#IC knowledge#purchase
Basic knowledge of crystal vibration, circuit design, non-vibration reasons, circuit principle, crystal frequency, digital circuit application (crystal vibration data download)

Order transfer! A 30-year old Hong Kong-owned PCB factory in Shenzhen was sold

Recently, Datong Machinery announced on the Hong Kong Stock Exchange that on October 16, 2023, it entered into a Memorandum of Understanding and a sale and purchase agreement with Anpak Circuit Board Co., LTD., selling all the share capital of Hong Kong Bangji Shares and all the shares of Shenzhen Bangji. Among them, the price of Shenzhen Bangji is about 137 million yuan, and the buyer is Anbai Circuit Board Co., LTD. Since then, the Hong Kong identity of the old PCB factory that has operated in Shenzhe....
2024-02-22 16:25:07 33
Order transfer! A 30-year old Hong Kong-owned PCB factory in Shenzhen was sold

New product release | Daoheshun infrared methane sensor, guarding the "last pass" of gas safety

Natural gas is a fossil fuel mainly composed of alkanes, of which methane accounts for 70% to 90% of its composition, with small amounts of ethane, propane and butane. Methane is a colorless, odorless and flammable gas, which is prone to gas leakage during production, storage, transportation, distribution and use, and it is easy to cause fire, explosion and other serious safety accidents after leakage. In modern technology, the detection of natural gas leakage is mainly divided into the detection of met....
2024-02-22 16:25:05 20
New product release | Daoheshun infrared methane sensor, guarding the "last pass" of gas safety

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