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HT45F3420 Datasheet(PDF) 7 Page - Holtek Semiconductor Inc |
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HT45F3420 Datasheet(HTML) 7 Page - Holtek Semiconductor Inc |
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7 / 141 page  Rev. 1.31 6 April 11, 2017 Rev. 1.31 7 April 11, 2017 HT45F3420/HT45F3430 Personal Care Flash MCU HT45F3420/HT45F3430 Personal Care Flash MCU General Description Theseriesofdevicesarededicatedforuseinbatterypowercontrol.TheyareFlashMemorytype 8-bithighperformanceRISCarchitecturemicrocontrollers.Offeringuserstheconvenienceof FlashMemorymulti-programmingfeatures,thedevicesalsoincludeawiderangeoffunctionsand features.OthermemoryincludesanareaofRAMDataMemoryaswellasanareaoftrueEEPROM memoryforstorageofnon-volatiledatasuchasserialnumbers,calibrationdataetc. Analogfeaturesincludeamulti-channel12-bitA/Dconverterfunction.ATimerModuleprovides timing,pulsegeneration,captureinput,comparematchoutputandPWMgenerationfunctions. ProtectivefeaturessuchasaninternalWatchdogTimerandLowVoltageResetcoupledwith excellentnoiseimmunityandESDprotectionensurethatreliableoperationismaintainedinhostile electricalenvironments.TheprotectionfunctionsalsoincludeOverCurrentProtectionandOver VoltageProtection. AhighspeedHIRCandlowspeedLIRCoscillatorareprovidedwhicharefullyintegratedsystem oscillatorsandwhichrequirenoexternalcomponentsfortheirimplementation. TheinclusionofflexibleI/Oprogrammingfeatures,Time-Basefunctionsalongwithmanyother featuresensurethatthedeviceswillfindexcellentuseinapplicationssuchaselectronicpersonal careproductsinadditiontomanyothers. Selection Table Mostfeaturesarecommontobothdevices.ThemainfeaturesdistinguishingthemareMemory capacity,I/Ocount,externalinterruptcount,A/Dconverterchannelcount,LCD/LEDdriving functionandthepackagetypes.Thefollowingtablesummarisesthemainfeaturesofeachdevice. Part No. VDD ROM RAM EEPROM I/O Ext. Int. A/D Converter HT45F3420 2.2V~5.5V 1K×14 64×8 32×8 8 1 12-bit×4 HT45F3430 2.2V~5.5V 2K×15 128×8 64×8 22 2 12-bit×8 Part No. LCD Driver LED Driver Timer Module Time Base Stack Package HT45F3420 ─ ─ 10-bit STM×1 2 4 8SOP 10MSOP HT45F3430 4-SCOM √ 10-bit STM×1 2 4 16NSOP 24SSOP Note:Asdevicesexistinmorethanonepackageformat,thetablereflectsthesituationforthe packagewiththemostpins. |
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