文章对AT 89 C51单片机芯片，晶体振荡器，涉及到的各元器件以及按键控制模型做了详细的介绍。
The article to at89C51 monolithic integrated circuit chip, the crystal oscillator, various primary devices which as well as the pressed key control model involved has made the detailed introduction.
文章对AT 89 C51单片机芯片，晶体振荡器，涉及到的各元器件以及按键控制模型做了详细的介绍。
The article to at89C51 monolithic integrated circuit chip, the crystal oscillator, various primary devices which as well as the pressed key control model involved has made the detailed introduction.
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