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时钟芯片DS12c887

上传者: 2019-08-01 10:36:59上传 PDF文件 195.19KB 热度 45次
Drop-inreplacementforIBMATcomputerclock/calendarPincompatiblewiththeMC146818BandDS1287Totallynonvolatilewithover10yearsofoperationintheabsenceofpowerSelf-containedsubsystemincludeslithium,quartz,andsupportcircuitry.Countsseconds,minutes,hours,days,dayoftheweek,date,month,andyear
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