HT45FH4M
Lithium Battery Backup Power ASSP MCU
Features
CPU Features
•ꢀ OperatingꢀVoltage:
ꢀ
♦
fSYSꢀ=ꢀ7.5MHz:ꢀ2.7V~5.5V
fSYSꢀ=ꢀ15MHz:ꢀ4.5V~5.5V
ꢀ
♦
•ꢀ Upꢀtoꢀ0.27μsꢀinstructionꢀcycleꢀwithꢀ15MHzꢀsystemꢀclockꢀatꢀVDD=ꢀ5V
•ꢀ Powerꢀdownꢀandꢀwake-upꢀfunctionsꢀtoꢀreduceꢀpowerꢀconsumption
•ꢀ Oscillators:
ꢀ
♦
InternalꢀRCꢀ--ꢀHIRC
ꢀ
♦
Internalꢀ32kHzꢀ--ꢀLIRC
•ꢀ Fullyꢀintergratedꢀinternalꢀ30MHzꢀoscillatorꢀrequiresꢀnoꢀexternalꢀcomponents
•ꢀ Multi-modeꢀoperation:ꢀNORMAL,ꢀSLOW,ꢀIDLEꢀandꢀSLEEP
•ꢀ Allꢀinstructionsꢀexecutedꢀinꢀoneꢀorꢀtwoꢀinstructionꢀcycles
•ꢀ Tableꢀreadꢀinstructions
•ꢀ 63ꢀpowerfulꢀinstructions
•ꢀ 4-levelꢀsubroutineꢀnesting
•ꢀ Bitꢀmanipulationꢀinstruction
Peripheral Features
•ꢀ FlashꢀProgramꢀMemory:ꢀ2K×16ꢀ
•ꢀ RAMꢀDataꢀMemory:ꢀ128×8
•ꢀ EEPROMꢀMemory:ꢀ64×8
•ꢀ WatchdogꢀTimerꢀfunction
•ꢀ Upꢀtoꢀ13ꢀbidirectionalꢀI/Oꢀlines
•ꢀ Twoꢀpin-sharedꢀexternalꢀinterrupts
•ꢀ MultipleꢀTimerꢀModuleꢀforꢀtimeꢀmeasure,ꢀinputꢀcapture,ꢀcompareꢀmatchꢀoutput,ꢀPWMꢀoutputꢀ
functionꢀorꢀsingleꢀpulseꢀoutputꢀfunction
•ꢀ Overꢀcurrentꢀprotectionꢀ(OCP)ꢀwithꢀinterrupt
•ꢀ Overꢀvoltageꢀprotectionꢀ(OVP)ꢀwithꢀinterrupt
•ꢀ DualꢀTime-Baseꢀfunctionsꢀforꢀgenerationꢀofꢀfixedꢀtimeꢀinterruptꢀsignals
•ꢀ 8-channelꢀ12-bitꢀresolutionꢀA/Dꢀconverter
•ꢀ Lowꢀvoltageꢀresetꢀfunctionꢀ(enable@2.55V)
•ꢀ Lowꢀvoltageꢀdetectꢀfunction
•ꢀ OneꢀintegratedꢀLDO:ꢀ5Vꢀoutput
•ꢀ 2ꢀlevelꢀshiftꢀoutputꢀpins
•ꢀ Packageꢀ:ꢀ20-pinꢀSSOP
Rev. 1.10
6
�anꢀaꢁꢂ 1ꢃꢄ ꢅ01ꢆ
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
