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HT45F23A Datasheet(PDF) 9 Page - Holtek Semiconductor Inc |
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HT45F23A Datasheet(HTML) 9 Page - Holtek Semiconductor Inc |
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9 / 148 page  Rev. 1.00 8 ���� 0�� �01� Rev. 1.00 9 ���� 0�� �01� HT45F23A 8-Bit Flash MCU with Op Amps & Comparators HT45F23A 8-Bit Flash MCU with Op Amps & Comparators General Description TheHT45F23AisaFlashMemoryTinypowerA/Dtype8-bithighperformanceRISCarchitecture microcontrollers,designedespeciallyforapplicationsthatinterfacedirectlytoanalogsignals. TheHT45F23Adevicehasahighergainbandwidthmakingitmoresuitableforhigherfrequency applications. OfferinguserstheconvenienceofFlashMemorymulti-programmingfeatures,thedevicealso includesawiderangeoffunctionsandfeatures.OthermemoryincludesanareaofRAMData MemoryaswellasanareaofEEPROMmemoryforstorageofnon-volatiledatasuchasserial numbers,calibrationdataetc. Analogfeaturesincludeanintegratedmulti-channelAnalogtoDigitalConverter,dualPulse WidthModulationoutputs,dualOperationalAmplifiers,dualComparators,oneinternal2.4Vor 3.3VLDO(LowDropOut)forvoltageregulatoranda12-bitDACforvoiceoutputapplication, communicationwiththeoutsideworldiscateredforbyincludingfullyintegratedSPIorI2C interfacefunctions,twopopularinterfaceswhichprovidedesignerswithameansofeasy communicationwithexternalperipheralhardware.ProtectivefeaturessuchasaninternalWatchdog Timer,LowVoltageResetandLowVoltageDetectorcoupledwithexcellentnoiseimmunityand ESDprotectionensurethatreliableoperationismaintainedinhostileelectricalenvironments. AfullchoiceofHXT,LXT,ERC,HIRCandLIRCoscillatorfunctionsareprovidedincludinga fullyintegratedsystemoscillatorwhichrequiresnoexternalcomponentsforitsimplementation. TheuniqueHoltekTinyPowertechnologyalsogivesthedeviceextremelylowcurrentconsumption characteristics,anextremelyimportantconsiderationinthepresenttrendforlowpowerbattery poweredapplications.TheusualHoltekMCUfeaturessuchaspowerdownandwake-upfunctions, oscillatoroptions,programmablefrequencydivider,etc.combinetoensureuserapplicationsrequire aminimumofexternalcomponents. TheinclusionofflexibleI/Oprogrammingfeatures,Time-Basefunctionsalongwithmanyother featuresensurethatthedevicewillfindexcellentuseinapplicationssuchaselectronicmetering, environmentalmonitoring,handheldinstruments,householdappliances,electronicallycontrolled tools,motordriving,homesecuritysystemsrelatedtoSmokedetectorandmanyothers. |
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