单片机电子密码锁设计论文
f作者：日期：
2
f单片机电子密码锁设计论文
单片机电子密码锁设计【Abstract】Theelectro
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tlocksthesecurityhasthequitegoodmarketprospect【Keywords】MCUAT89C51LM386electro
icpasswordlock目录
摘要．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．3第一章单片机电子密码锁系统概述．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．41．电子密码锁的特点．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．42．市场前景．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．43．新型安全密码锁的设计目标．．．．．．．．．．．．．．．．．．．．．．．．．．．44工作原理．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．5第二章单片机功能介绍．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．6
1．AT89C51的主要特性．．．．．．．．．．．．．．．．．．．．．．．．．．．．62．AT89C51的管脚说明．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．63．振荡器特性．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．7第三章密码锁硬件电路．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．81．硬件电路的组成．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．8r