标签: nonvolatile

Abstract:Forwarrantyreasonsitisdesirabletocountcertaineventssuchaspowercycles,operatingtime,hard(pushbutton)resets,andtimeouts.Althoughdigitalcountersareeasytobuild,itisnotthatobvioushowtomakethemnonvolatileandnonresettable.ThisarticleexplainshowtousetheEPROM-emulationmodeofreadilyavailableserialEEPROMstogetherwithanunusualcodingschemetosolvetheproblem.Maxim>Designsupport>Appnotes>1-WireDevices>APP5042Maxim>Designsupport>Appnotes>Memory>APP5042Keywords:digitalcounter,nonvolatile,nonresettable,NV,EPROMemulationmode,EEPROM,EPROM,eeprom,epromJun08,2011APPLICATIONNOTE5042ImplementingNonvolatile,NonresettableCountersforEmbeddedSystemsBy:BernhardLinke,PrincipalMemberTechnicalStaffAbstract:Forwarrantyreasonsitisdesirabletocountcertaineventssuchaspowercycles,operatingtime,hard(pushbutton)resets,andtimeouts.Althoughdigitalcountersareeasytobuild,itisnotthatobvioushowtomakethemnonvolatileandnonresettable.Thisarticleexplain……

摘要：DS3930包含6个256位的非易失性电位器，使DS3930需要多个电压基准的应用的理想设备。DS3930还具有四个通用，非易失性I/O引脚可以监视数字输入或提供一个数字输出。本应用笔记提供的例子使用的DS3930作为一个参考电压和数字I/OMaxim>AppNotes>DIGITALPOTENTIOMETERSKeywords:DS3930,potentiometer,non-volatile,nonvolatile,voltagereference,digitalI/O,LCD,fan,Jun25,2003photodiode,comparator,pressuresensorAPPLICATIONNOTE2140ExamplesUsingtheDS3930asVoltageReferencesandDigitalI/OAbstract:TheDS3930containssix256-positionnonvolatilepotentiometers,whichmakestheDS3930anidealdeviceforapplicationsneedingmultiplevoltagereferences.TheDS3930alsohasfourgeneral-purpose,nonvolatileI/Opinsthatcanmonitoradigitalinputorsupplyadigitaloutput.ThisapplicationnoteprovidesexamplesusingtheDS3930asavoltagereferenceanddigitalI/O.IntroductionTheDS3930containssix256-positionnonvolatile(NV)potentiometers(seeFigure1),whichmakestheDS393……

摘要：作为替代使用的PAL，GAL的，或CPLD器件来实现非易失性的选通功能，这些电路的存储使用串行接口控制数字电位器（MAX5427或MAX5527）的门控信号（阻止或发送）。Maxim>AppNotes>DigitalPotentiometersKeywords:nonvolatilegating,digitalpotentiometers,serialinterfaceJan27,2011APPLICATIONNOTE4571SimpleNonvolatileGatingBy:ReinhardtWagnerAbstract:AsanalternativetotheuseofPALs,GALs,orCPLDdevicestoimplementanon-volatilegatingfunction,thesecircuitsstorethegatingsignal(blockortransmit)usingadigitalpotentiometer(MAX5427orMAX5527)controlledbyaserialinterface.AsimilarversionofthisarticleappearedintheSeptember3,2007issueofEDNmagazine.Thefollowingdescribesasimplealternativetothenon-volatilegatingfunctiontypicallyimplementedbyaPAL,GAL,orCPLDdevice.To"gate"alogicsignal(toblockortransmitit),youusuallyempl……

摘要：一些数字系统控制位设置为高或低取决于系统的配置。一个常见的例子是在一台PC配置跳线或DIP开关设置光盘驱动器是一个ISA总线上的船长或奴隶。在其他应用程序，这些配置位可启用或禁用功能，如马达驱动器或灯泡时功率为允许处理器时间采取控制系统，使安全或电源预算的原因，有秩序地功能。本应用笔记演示如何备用非易失（NV）数字电位器可以用于数字配置位。Maxim>AppNotes>DIGITALPOTENTIOMETERSGENERALENGINEERINGTOPICSKeywords:NV,nonvolatile,digipot,digitalpotentiometer,digitalpots,digitalconfiguration,epot,DS3903,Mar03,2003DS1846APPLICATIONNOTE235UsingSpareNVDigitalPotsasNVDigitalConfigurationBitsAbstract:SomedigitalsystemshavecontrolbitsthataresettoHIorLOdependingontheconfigurationofthesystem.AcommonexampleinaPCisaconfigurationjumperordipswitchthatsetswhichdiscdriveisthemasterorslaveonanISAbus.Inotherapplications,theseconfigurationbitsmayenableordisableafunctionsuchasamotordriveorlampaduringpower-uptoallowaprocessortimetotakecontrolofthesystemandenablefunctionsinanorderlymannerforsafetyorpowerbudgeti……