| DS12887实时时钟芯片及应用研究 |
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| 引用本文： | 周向红,范伟. DS12887实时时钟芯片及应用研究[J]. 企业技术开发, 2006, 25(2): 6-8 |
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| 作者姓名： | 周向红 范伟 |
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| 作者单位： | [1]湖南工程学院电气与信息工程系,湖南湘潭411101 [2]湖南华凌线缆股份有限公司,湖南湘潭411104 |
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| 摘 要： | DS12887是美国Dallas公司推出的实时时钟芯片,采用CMOS技术制成,具有微功耗、外围接口简单、精度高、工作稳定可靠等优点,功能丰富、应用广泛。文章介绍了DS12887时钟芯片的主要功能、内部框图、引脚说明、使用方法及在智能电量测量仪中的应用,并给出了DS12887时钟芯片与AT89C51单片机的接口电路。
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| 关 键 词： | 时钟芯片 DS12887 智能仪器仪表 |
| 文章编号： | 1006-8937（2006）02-0006-03 |
| 收稿时间： | 2005-09-26 |
| 修稿时间： | 2005-09-26 |
The real-time clock-chip DS12887 and its application and research |
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| ZHOU Xiang-hong,FAN Wei. The real-time clock-chip DS12887 and its application and research[J]. Technological Development of Enterprise, 2006, 25(2): 6-8 |
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| Authors: | ZHOU Xiang-hong FAN Wei |
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| Abstract: | The DS12887 is a real-time clock-chip which the American DALLAS company release, adopt the CMOS technique to crank out it.There are advantages:low power consumption, simple peripheral interface, high accuracy, steady and reliable work,abundant function, wide application and so on.In the paper, the main function,internal frame diagram of the DS12887 clock chip, pin elucidation,operation method and application in intelligence electrical quantity admeasuring apparatus are introduced,and there are interface circuit between clock chip DS12887 and chip-microcomputer AT89C51 leadin. |
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| Keywords: | DS12887 |
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