HT45F4630 datasheet(8/153 Pages) HOLTEK

8 / 153 page

Rev. 1.00

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Rev. 1.00

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HT45F4630

DC Motor Driver ASSP MCU

HT45F4630

DC Motor Driver ASSP MCU

General Description

ThedeviceisaFlashMemorytype8-bithighperformanceRISCarchitecturemicrocontrollerwith

integratedfunctionsforDCmotordrivingapplications.OfferinguserstheconvenienceofFlash

Memorymulti-programmingfeatures,thisdevicealsoincludesawiderangeoffunctionsand

features.OthermemoryincludesanareaofRAMDataMemoryaswellasanareaofEEPROM

memoryforstorageofnon-volatiledatasuchasserialnumbers,calibrationdataetc.

Analogfeaturesincludeamulti-channel12-bitA/Dconverterandanoperationalamplifier.With

regardtointernaltimers,thedeviceincludesmultipleandextremelyflexibleTimerModules

providingfunctionsfortiming,pulsegenerationandPWMgenerationfunctions.Protectivefeatures

suchasaninternalWatchdogTimer,LowVoltageResetandLowVoltageDetectorcoupledwith

excellentnoiseimmunityandESDprotectionensurethatreliableoperationismaintainedinhostile

electricalenvironments.

Afullchoiceofvariousexternalandinternallowandhighspeedoscillatorfunctionsisprovided

includingafullyintegratedsystemoscillatorwhichrequiresnoexternalcomponentsforits

implementation.Theabilitytooperateandswitchdynamicallybetweenarangeofoperatingmodes

usingdifferentclocksourcesgivesuserstheabilitytooptimisemicrocontrolleroperationand

minimisepowerconsumption.Communicationwiththeoutsideworldiscateredforbyincludinga

fullyintegratedI2Cinterface,thispopularinterfacewhichprovidesdesignerswithameansofeasy

communicationwithexternalperipheralhardware.AlsotheinclusionofflexibleI/Oprogramming

features,Time-Basefunctionsandexternalinterruptsalongwithmanyotherfeaturesfurtherenhance

devicefunctionalityandflexibilityforwiderangeofapplicationpossibilities.

Thisdevicecontainsahighvoltagedrivercontrolcircuitandahighvoltagedrivercombination

circuitaswellashighvoltagepowersupplydetectionandovercurrentprotectionfunctionswhich

canbeusedindifferentmotordriverapplications.

Block Diagram

8-bit

RISC

MCU

Co�e

F�ash

P�og�am

Memo�y

F�ash/EEPROM

P�og�amming Ci�cuit�y

R�M

Data

Memo�y

Low

Vo�tage

Reset

Inte�na�

HIRC/LIRC

Osci��ato�s

Inte��u�t

Cont�o��e�

Reset

Ci�cuit

Exte�na�

HXT/LXT

Osci��ato�s

1�-bit �/D

Conve�te�

OP�

OCP

I/O

EEPROM

I�C

Low

Vo�tage

Detect

Cont�o�

Ci�cuit

Leve�

Shift

High Vo�tage D�ive�

Watchdog

Time�

Time

Base

10-bit

PTM×�

1�-bit

PTM×�

HXT PWM

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