简单的双向模拟开关（MAX4525）在电路编程通过提供促进双服务为两行（SDA和沙田至中环线）可编程的设备上：正常操作，它们连接到其他的电路和编程模式，它们连接到编程的标头。Maxim>AppNotes>AnalogSwitchesandMultiplexersAutomaticTestEquipment(ATE)Keywords:in-circuitprogramming,serialbus,I2C,analogswitches,multiplexer,muxAug05,2010APPLICATIONNOTE4484In-CircuitProgrammingSwitchBy:EricSchlaepfer,ApplicationsEngineerAbstract:Asimplebidirectionalanalogswitch(MAX4525)facilitatesin-circuitprogrammingbyprovidingdualservicefortwolines(SDAandSCL)ontheprogrammabledevice:fornormaloperationtheyconnecttoothercircuitry,andforprogrammingmodetheyconnecttotheprogrammingheader.AsimilarversionofthisarticleappearedintheOctober21,2008issueofElectronicDesignmagazine.Manydevicesnowavailablerequireprogrammingthrougha
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