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1、SystematicdependabilitytechnologyanddevelopmentofsinglechipThistextintroducesone-chipcomputereffortsanddevelopmentthattechnologymakesinofferingthedependabilityofthesysteminrecentyears.Reminduserinsinglechippersonwhoselect,singlechipapplicationsystemdesign
2、andmanufacturingengineering,etc.respectshouldnoticeanything,Inordertorealizetheapplicationsystemofsinglechipofhighdependability.Withsemiconductordevelopmentatfullspeedoftechnology,singlechipowndesignadoptssomenewanti-interferencetechnologyconstantly;Maket
3、hedependabilityofthesinglechipraiseconstantly.Besideschoosingtheabilitystrongsinglechipofanti-interference,singlechipsystemothersupplementarycomponentsandpartshavemoreessentialdependabilitiestoo,somesuppresseduseofcomponentsandpartsthatinterferecontribute
4、toimprovingsystematicdependability.Inadditionsinglechipsystemgoodearthyonewhencircuitdesign,printedcircuitdesign,wiring,manufacturingengineeringandsysteminstallationofboard,Influencesthedependabilityoftheapplicationsystemdirectly.TheSinglechip’sownanti-in
5、terferencemeasure,inordertoimproveitsowndependability.Manufacturersofthesinglechiphavetakenaseriesofmeasurestobeinthehopeofimprovingdependabilityinthesinglechipdesigninrecentyears.Thetechnologyembodiesinthefollowingaspectsmainly.1.Reduceclockfornoisesourc
6、eofhighfrequencyforclockfrequencynotother,exceptthatcan'tcancauseforapplicationsystemofinterference,Alsomayproducetoexternalinterference,makeelectromagnetictomeasureandcanuptostandardofwhilebeingcompatible.Amongapplicationsystemthathaveveryhighexpectation
7、sfordependabilityofthesystem,selectforusefrequencylowsinglechiptoreducesystematicprincipleofnoiseoneof.Take8051singlechipsasanexample,shortinstructioncycle1μonthes,theotherclockis12MHzsmost.AndsameMotorolasinglechipsystematicclockofspeedonlytakes4MHzs,mor
8、esuitableforandusedinworker'ssystemofaccusingof.Inrecentyears,somemanufacturersproducing8051compatiblesinglechipshaveadoptedsomenewtechnologiestoo;indieoperationdropforeigndemandofclocktooriginal1/3undertheprerequis
