FEATURES•Drop–inreplacementforIBMATcomputerclock/calendar•PinconfigurationcloselymatchesMC146818BandDS1285•Countsseconds,minutes,hours,days,dayoftheweek,date,month,andyearwithleapyearcompensationvalidupto2100•BinaryorBCDrepresentationoftime,calendar,andalarm•12–or24–hourclockwith