TC microcontroller stability and quality in the market is generally considered to be relatively general, so in use may encounter some problems, such as burn not into the program, the program is not stable operation. This is why when using STC microcontroller will often encounter the need to replace the chip.
However, it is worth noting that this does not mean that all STC microcontrollers will have such problems, because the quality of different batches and different models of chips may vary. At the same time, the problems encountered in the use of single chip may also be related to the external circuit, programmer, programming and other factors.
If you often fail to burn the program, it is recommended to check your circuit design and programmer is correct, and if there is a problem with the program. If there is no problem in these aspects, you can try to replace another STC microcontroller for testing.
In short, when using any single chip microcomputer, we should pay attention to circuit design, programming and debugging, to ensure the stability and reliability of the system.
