With the rise of the microcontroller industry, choosing a suitable microcontroller model is a very important step when developing and designing electronic products. Microcontroller selection requires attention to different package sizes, memory, footprint and special features. When developing electronic products, the microcontroller is an indispensable core component, which is the overall control system for the entire product.
 
        Another point to note is that the microcontroller brand is mixed, in addition to some can be directly PIN to PIN replacement of the microcontroller machine, many other models are not universal, need to be modified in accordance with the different foot function.
        Therefore, the selection of the microcontroller will be a top priority step, if the selection is not correct, the entire project will be stalled.
 
        The importance of the above two points cannot be sloppy, now, Our company will be for the project of microcontroller selection, need to pay attention to the important parameters of what to do detailed explanation.

Microcontroller selection

1, microcontroller development hardware requirements
        First of all, you need to sort out all the contents related to the project, draw all the external interfaces and the functional schematics required for the project, confirm the number of pins that need to be connected to the project development and the input and output requirements. From this project choose the appropriate package microcontroller.
 
2, microcontroller development software requirements
        Next are the requirements for microcontroller software development. It is necessary to first confirm the software functional requirements for the development of this project, such as: instruction processing capability, time control, response speed and other functional program instructions for execution.
 
3, how to choose the right memory size microcontroller
        In the microcontroller selection, you need to pay attention to the storage capacity of the microcontroller. ROM, ADC, RAM and EEPROM are the main components of the microcontroller, in the microcontroller selection, to ensure that your operation will not run out of storage space.

4, how to choose a low-cost microcontroller
        In the development of electronic products project, the cost of compression is the most concerned entrepreneurs, the cost of high and low, with the microcontroller also has a close relationship, such as your project development needs to have complex functional requirements, the cost of the microcontroller will also be increased, simple functional development projects can choose a cheap microcontroller.

5, the number of bits of the microcontroller processor
        For example, 8-bit, 16-bit, 32-bit, 64-bit microcontroller, 64-bit is currently the largest number of bits in the microcontroller industry chip. When you are in the microcontroller selection, is also very important, according to the number of functional instructions of the software program, select the corresponding number of bits microcontroller can be, the lower the cost of the number of bits is relatively lower, so the microcontroller selection, the number of bits is also to reduce the number of electronic products an important factor in development costs.