The identification method of the chip type varies according to the manufacturer and the model, but the following are some common identification methods.
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1. Mark the model on the chip: most of the single-chip chips will be printed on the surface of the chip, which can be found directly through visual inspection.
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2. Check the chip manual: Each microcontroller chip has an official manual, in which you can find the chip model, pin and electrical characteristics and other information. You can download the chip manual from the chip manufacturer's website or a third-party website.
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3. Use identification tools: there are some single-chip chip identification tools on the market that can assist in reading chip models and programming.
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4. Call software: In the single chip programming and running software, there is often a process of identifying the chip model when communicating with the chip, so that the chip model can also be obtained from the software.
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It should be noted that different microcontroller chips may have the same appearance, so they need to be distinguished by other means. When using identification tools and software, it is also necessary to use a device compatible with the single chip microcomputer chip for identification.
The single chip chip model can usually be identified by looking at the logo on the chip or consulting the chip manual.
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1. Check the chip identification: there is usually a special identification on the MCU chip, including model, manufacturer and other information, and sometimes there are other ICONS. These logos can be viewed with the naked eye or using tools such as a magnifying glass. Some common microcontroller chip identifiers include AT89C51, PIC16F877, STM32F103 and so on.
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2. Consult the chip manual: microcontroller manufacturers usually provide the corresponding chip manual, which includes the detailed parameters, characteristics, pin definition, electrical characteristics, pin connection and other information of the chip. By consulting the chip manual, you can more accurately understand the functions and characteristics of the chip.
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It should be noted that different manufacturers of chips, the identification method may be different, some unknown small manufacturers may also use a variety of marks, so you need to be careful when identifying the chip model.
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View the front logo of the microcontroller: Many microcontroller chips will have a logo on the front that can indicate the model, such as AT89C51, ATmega328P, and so on. Usually in the chip manufacturer's website to search for the model of the single chip computer can get the relevant information of the model.
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View the inscription on the back of the chip: some microcontroller chips do not mark the model on the front, but there will be an inscription on the back, you can view the back identification to obtain the microcontroller model. The back identification format may be different, and it needs to be judged according to the real situation of the chip.
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Read the model through the program: Some single-chip chips can use the program to read the ID number inside the chip, so as to know the model. Need the related single chip microcomputer development board and the corresponding program to achieve.