HT45F77 datasheet(7/203 Pages) HOLTEK

7 / 203 page

Rev. 1.20

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Rev. 1.20

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HT45F77

Body Fat Scale Flash MCU

HT45F77

Body Fat Scale Flash MCU

Features

CPU Features

• Operatingvoltage

♦

fSYS=8MHz:2.2V~5.5V

♦

fSYS=12MHz:2.7V~5.5V

♦

fSYS=20MHz:4.5V~5.5V

• Upto0.2μsinstructioncyclewith20MHzsystemclockatVDD=5V

• Powerdownandwake-upfunctionstoreducepowerconsumption

• Fouroscillators

♦

ExternalCrystal−HXT

♦

External32.768kHzCrystal−LXT

♦

InternalRC−HIRC

♦

Internal32kHzRC−LIRC

• Multi-modeoperation:NORMAL,SLOW,IDLEandSLEEP

• Fullyintegratedinternal4.8MHz,4.8×2MHzand4.8×3MHzoscillatorrequiresnoexternal

components

• Allinstructionsexecutedin1~3instructioncycles

• Tablereadinstructions

• 115powerfulinstructionsl

• 8-levelsubroutinenesting

• Bitmanipulationinstruction

Peripheral Features

• FlashProgramMemory:8K×16

• RAMDataMemory:256×8

• TrueEEPROMMemory:64×8

• WatchdogTimerfunction

• LCDCOMdriverwith1/3bias

• 36bidirectionalI/Olines

• Dualpin-sharedexternalinterrupts

• MultipleTimerModulesfortimemeasure,inputcapture,comparematchoutput,PWMoutputor

singlepulseoutputfunction

• DualTime-Basefunctionsforgenerationoffixedtimeinterruptsignals

• 2differentialchannels20-bitresolutionDelta-SigmaA/Dconverter

• Lowvoltageresetfunction

• Lowvoltagedetectfunction

• InternalLDOwithbypassfunctionforPGA,ADCorexternalsensorpowersupply

• SerialInterfacesModule−SIMforSPIorI2C

• UARTwithIRcarrier

• BodyFatcircuit

• Packagetype:64/80-pinLQFP

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