This paper introduced a single-chip microcomputer 89C52 mainly about the single-chip microcontroller applications, as well as the history of the future. On the 89C52 single chip is adopted to achieve the clock, alarm clock, stopwatch functions to set out. Which interspersed about 7447 chips, digital control equipment and other hardware on peripherals.
With the social development, automation is becoming increasingly popular, Microcontroller, PLC, will be widely used. After the development of several generations of single-chip, is now more mature. Or whether it is the daily life of industrial applications, can be seen everywhere SCM figure. Moreover, single-chip low cost, development cost is very low. If equipped with appropriate peripheral devices, single chip numerous functions can be achieved. Single-chip C language or languages can be assembly language, as long as the study had high-level language, microcontroller programming would become very easy.
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