使用DS1859的外部EEPROM

摘要：本应用笔记讨论SFF-8472的应用程序需要内存超过128字节的I²C*设备地址A0h添加到外部EEPROM。

Maxim>AppNotes>DIGITALPOTENTIOMETERSFIBER-OPTICCIRCUITSKeywords:DS1859,SFF-8472,MSA,FiberOptics,appnote3481Mar23,2005APPLICATIONNOTE3481UsingtheDS1859withExternalEEPROMAbstract:ThisapplicationnoteaddressesaddingexternalEEPROMintoSFF-8472applicationsthatrequiremorethan128BytesofmemorylocatedattheIC*deviceaddressA0h.IntroductionTheDS1859isadualdigitalresistorthatautomaticallyadjustsitselfasafunctionoftemperaturetothevaluesprogrammedintoaEEPROMlook-uptable(LUT).Otherfeaturesincludefiveanalog-to-digitalchannels(includingVCCandtemperature)andamemorymapthatiscompatiblewithSFF-8472fiberopticapplications.Thisapplicationnoteaddressesaddingex