HT81XXX资料

HT81XXXTM

EasyVoiceSpeech

Features

·Operatingvoltage:2.4V~5V·Directlydrivesanexternaltransistor·PWMfunctiondirectlydriverspeaker·Lowstandbycurrent(1mAtyp.forVDD=3V)·Minimalexternalcomponents

·240notestableROMforkeyfunctions

·Programmablesilencelengthandend-pulsewidth

·FLAG2options

3Hzflash6HzflashBusyoutputOFF

·6keys(Directed)

·8keys(Matrixkey)·Keyoptions

----

(minimalend-pulsewidthis1.3msat8kHzsamplingrate)

·Controllablevolume·FLAG1options-----

End-pulseoutput3Hz,3HzBflash6Hz,6HzBflashBusyoutputOFF

Sequential/DirectedRepeat(KEY2~KEY6)STOPkey(KEY6)

Keydebouncetime:1.2ms,22ms,45ms(basedona8kHzsamplingrate)-Oneshot/Normal

-Pull-highresistance:0,50kW,100kW,200kW·Sectionoptions

-Retriggerable-Non-retriggerable

·Diceformor16-pinDIPpackage

----

Applications

·Leisureproducts·Alarmclocks

·Alertandwarningsystem·Soundeffectgenerators

GeneralDescription

TheEasyVoiceTMisasingle-chipvoicesynthesizerLSI.ThechipwhentriggereddrivesaspeakerdirectlyorthroughanexternaltransistorwithaPWMoutput.Negli-giblecurrentisconsumedinthestandbystate.TheHT81XXXprovidesdirectkeyorMatrixkeyinputand2programmableFLAGoutputs.With2.4V~5.0Vpowersupply,acompletesynthesizedvoiceplaybacksystemcanbeeasilybuiltwithveryfewexternalcompo-nents.

Thecustomer¢svoicesourcesarerecordedsectionbysectionintoaninternalmaskROM.TheinstructionsofsectionplaybackarrangementofeachkeyarestoredinthetableROM.Thekeyfeaturesarealsoprogramma-ble.Withsuchaflexiblestructure,theEasyVoiceTMisexcellentforversatilevoiceapplications.

SelectionTable

PartNo.VoiceCapacityNote:

MaskOTP

HT81003HT81R033sec

6secHT81006

HT81009HT81R099sec

12secHT81012

HT81018HT81R1818sec

HT81R3636sec

Thevoicecapacityiscalculatedbasedon5kHzsamplingrate.

For3-secondcapacityHT81003/HT81R03devices,refertotheitsrelevantdatasheet.

EasyVoiceTMisatrademarkofHoltekSemiconductorInc.

Rev.1.401March1,2005

元器件交易网www.cecb2b.com

HT81XXXBlockDiagram

PinAssignment

PadAssignment

HT81006/HT81009

Chipsize:41.9´70.3(mil)2

*TheICsubstrateshouldbeconnectedtoVSSinthePCBlayoutartwork.

Rev.1.402March1,2005

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HT81XXXHT81012/HT81018

Chipsize:41.9´84.4(mil)2

*TheICsubstrateshouldbeconnectedtoVSSinthePCBlayoutartwork.

Rev.1.403March1,2005

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HT81XXXHT81R09

Chipsize:51´102.8(mil)2

*TheICsubstrateshouldbeconnectedtoVSSinthePCBlayoutartwork.

Rev.1.404March1,2005

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HT81XXXHT81R18

Chipsize:51.6´138(mil)2

*TheICsubstrateshouldbeconnectedtoVSSinthePCBlayoutartwork.

Rev.1.405March1,2005

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HT81XXXHT81R36

Chipsize:96.5´121.1(mil)2

*TheICsubstrateshouldbeconnectedtoVSSinthePCBlayoutartwork.

Rev.1.406March1,2005

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HT81XXXPadCoordinates

HT81006/HT81009

PadNo.1234567

HT81012/HT81018

PadNo.1234567

HT81R09

PadNo.12345678

HT81R18

PadNo.12345678

X-485.200-485.200-485.200-485.200-403.950-483.600-257.900-157.900

Y-621.000-734.000-834.000-947.000-1069.450-1298.500-1601.350-1601.350

PadNo.910111213141516

X-47.35098.650437.700437.700437.700485.650485.650477.050

Y-1601.350-1601.350-1612.425-1436.100-1259.775-1117.200-994.924-825.100

X-477.700-477.700-477.700-477.700-396.450-476.100-250.400-150.400

Y-173.500-286.500-386.500-499.500-621.950-851.000-1153.850-1153.850

PadNo.910111213141516

X-39.850106.150428.750428.750428.750476.700476.700468.100

Y-1153.850-1153.850-1164.925-988.600-812.275-669.700-547.424-377.600

Unit:mm

X-342.400-342.400-342.400-342.400-364.850-376.620-198.000

Y74.150-55.850-187.700-315.000-452.350-675.876-852.700

PadNo.891011121314

X-70.70044.300191.550377.200373.250377.200401.200

Y-852.700-852.700-819.900-826.800-556.900-287.00020.700

Unit:mm

X-342.450-342.450-342.450-342.450-364.900-376.670-198.050

Y254.150124.150-7.700-135.000-272.350-495.876-672.700

PadNo.891011121314

X-70.70044.250191.500377.150373.200377.150401.150

Y-672.700-672.700-639.900-646.800-376.900-107.000200.700

Unit:mmUnit:mm

Rev.1.407March1,2005

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HT81XXXHT81R36

PadNo.12345678

X-800.500-1071.700-1066.600-468.200-193.30043.900290.900485.000

Y1382.800-1175.050-1372.000-1361.000-1371.600-1371.600-1371.700-1372.000

PadNo.910111213141516

X712.2001053.5001053.5001043.900941.200513.175-210.400-555.200

Y-1372.000-1372.000-1067.650-874.7501389.7001384.3001382.8001382.800

Unit:mm

PinDescription

PinNo.12345,12678910,14111315,16

PinNameI/O2I/O1KEY4KEY3VDDOSCIKEY1KEY2OUT3VSSOUT2OUT1NCOE,VPP

I/OI/OIII¾IIII/O¾OO¾¾

InternalConnectionNMOSPull-highNMOSPull-high

Pull-highPull-high¾

OscillatorInputPin

Pull-highPull-highPull-highInput/NMOS

¾CMOSCMOS¾¾

Description

Triggerkey6,activelow/NMOSoutputTriggerkey5,activelow/NMOSoutputTriggerkey4,activelowTriggerkey3,activelowPositivepowersupplyOscillatorinputpinTriggerkey1,activelowTriggerkey2,activelow

Pull-high/transistoroutput/NMOSoutputNegativepowersupply,groundPWMoutput-/CMOSoutputPWMoutput+/CMOSoutput

Noconnection-HT81R36OTPdeviceexceptHT81R36OTPdeviceonly

AbsoluteMaximumRatings

SupplyVoltage..........................VSS-0.3VtoVSS+6.0VInputVoltage............................VSS-0.3VtoVDD+0.3V

StorageTemperature..........................-50°Cto125°COperatingTemperature..........................-20°Cto70°C

Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder²AbsoluteMaximumRatings²may

causesubstantialdamagetothedevice.Functionaloperationofthisdeviceatotherconditionsbeyondthoselistedinthespecificationisnotimpliedandprolongedexposuretoextremeconditionsmayaffectdevicereliabil-ity.

Rev.1.408March1,2005

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HT81XXXElectricalCharacteristics

SymbolVDDIDDISTBIOL1IOH1IOL2IOH2IOL3VIHVIL

Parameter

OperatingVoltageOperatingCurrentStandbyCurrentPWMOutputCurrentI/O2(TR)TrOutputCurrentI/O1(FLAGSinkCurrent)²H²InputVoltage²L²InputVoltage

TestConditions

VDD3V3V3V3V3V3V3V3V¾¾

NoloadOSCstopVOL=0.2VDDVOH=0.8VDDVOL=0.1VDDVOH=0.9VDDVOL=0.1VDD

¾¾

R=50kW(option)

RPH

InputPull-highResistor

3V

R=100kW(option)R=200kW(option)

fOSC

OscillatingFrequency

3V

R=110kW(fOSC=2MHz)

Conditions

¾

Min.2.4¾¾90-101-130.8VDD

040801601.6

Typ.310001110-203-25¾¾501002002

Max.512003¾¾¾¾¾VDD0.2VDD601202402.4

MHzkWTa=25°CUnitVmAmAmAmAmAmAVV

Characteristics Curve

Rev.1.409March1,2005

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HT81XXXFunctionalDescription

TheEasyVoiceTMisvoicesynthesizerwith6,9,12,18or36-secondvoicecapacity.Agroupofpre-recordedvoicesectionsisplayeduponreceiptofkeytriggerinputsig-nals.TwoFLAGsignalsareoutputwhileplayingvoices.TheHT81XXXvoicecapacitycanbedividedintosec-tionsofarbitrarylength.Noticethatthesilencelengthandend-pulsewidtharenotincludedinthememory.ByusingHoltek¢sprogrammingtools(HT-VDS81W),thecontentsandarrangementofsections,aswellaskeyfeaturesandFLAGoutputareallprogrammablebe-foredevicefabrication.

TheICprovides6directkeyinputs(KEY1~KEY6),KEY1canbeoptionedasadirect,sequentialtriggerkey.KEY2~KEY6canbeselectedasastoporadirectkey.

TheICprovidesmatrixkey(KEY1~KEY8),6program-mingpins(KEY1,KEY2,KEY3,KEY4,I/O1andI/O2)canbedividedto8keythatcanbeoptionedasnormaloroneshottrigger.

PlayFunctionBlockDiagram

VoiceROM

ThevoiceROMisoriginallydesignedtocontinuouslyre-cordthe6,9,12,18or36-secvoicedataatabout5kHzsamplingrate.Ahighersamplingratewillgeneratevoicesofbetterplaybackquality,butwillshortentheto-talrecordingtime.Ontheotherhand,alowersamplingratewillresultinlongerrecordingtimebutsacrificethevoicequality.

Theplaybacktimecanbesignificantlyextendedbymakinguseofcodingefficiency,silenceplaying,sectionrepeating,sectioncascade,etc.Section

SectionisthebasicelementconstitutingthecontentsofthevoiceROM.Duringprogramming,thecustomer¢svoicesourcescanbedividedintoasmanysectionsasrequired.Asectioncanbecomposedofavoiceoranin-tervalofsilence.However,thesilentlengthisnotcountedinthevoiceROM.Thetotalnumberofsectionsincludedshouldbelessthan240duetothespacelimi-tationofthefunctiontableROM.ThetotallengthoftheincludedsectionsislimitedbythevoiceROM.

SystemOscillator

TheEasyVoiceTMhasabuilt-inRCoscillatorwhichre-quiresonlyoneexternalresistorfornormalapplications.Theoscillatorfrequencyistypically2MHzforanexter-nalresistorof150kW.Therequiredoscillatorfrequencymayvarywithdifferentsamplingratesintheprocessofvoiceprogramming.Asaresult,thevalueoftheoscilla-torresistormaybedifferentwithrespecttodifferentitems.

Asection,whentriggeredbyakeyinput,canbeplayedonce,repeatedlyorcascadedwithothersections,de-pendingonthekeyfunctiontableinstructions.Thefollowingareexamplesofsectiondivision:Inaddition,asectioncanbesetasretriggerableornon-retriggerabledependingoncodeoption.

·Retriggerable

Whenthecurrentlyplayingsectionissetasretriggerable,itwillstopimmediatelyuponreceiptofotherkeyinputs.

·Non-retriggerable

Theoscillatoristurnedonwhentriggeredbyakeyinput.Afterplaying,itisimmediatelyturnedoff.Thenthechipgoesintothestandbystate.

Whenthecurrentlyplayingsectionisselectedasnon-retriggerable,itwillgoonplayinguntilthewholesectioniscompleted,whetherornotthereisakeyin-putintheprocessofplaying.

Rev.1.4010March1,2005

元器件交易网www.cecb2b.com

HT81XXXForakeygroup,somesectionscanbesetasretriggerableandsomeasnon-retriggerable.Whenaretriggerablesectionofakeygroupisplaying,anykeycanbetriggeredtointerruptitsplaying.Ifitisanon-retriggerablesectionplaying,anykeyinterruptisinvalid.Group

TheEasyVoiceTMplaysgroupsaccordingtothekeyin-put.Agroupcanbemadeupofoneormoresections.Whenakeyistriggered,thecorrespondinggroupisplayed.Forexample,triggeringKEY2playsgroup2,andsoon.Thesamesectionisallowedtoappearindif-ferentgroups.However,KEY1canbemadeupofmulti-plegroupswhenitisoptionedasasequentialkey.Otherwise,eachkeyiscomposedbyonegrouponly.KeyFunctionTable

ThevoiceROMsectionsareplayedaccordingtothein-structionsofthekeyfunctiontable.Thefunctiontablecontainsgroupinformationandtheplayingorderofthesectionsinthegroups.Noticethatthetotalamountofsectionsincludedinthegroupsshouldbelessthan256whichisthespacelimitationofthefunctiontableROM.

·KEY1asadirectkey

andcompriseofonlyonegroupinthefunctiontable.Anexampleisshownbelow:Group1-1Group1-2

::

Group1-NGroup2

sec.4+sec.2sec.1+sec.3

::

sec.2+sec.3sec.2+sec.3

Asindicatedintheabovetable,KEY1canbemadeupofsub-groups.Thecorrespondingsub-groupsisplayedinsequenceeachtimeKEY1istriggered.

¨

TheplayingsequenceofsequentialKEY1is:

Group1-1®Group1-2®Group1-3.....®Group1-N(thelastgroup)®Group1-1.....

ResetofKEY1playingsequence

Ifasub-groupofKEY1groupisbeingplayedandKEY2istriggered,theplayingsub-groupwillbeter-minated,andthenewlytriggeredkeygroupisplayedinstead.Thefirstsub-groupwillstartplayingbyretriggeringKEY1.Inotherwords,theKEY1playingsequenceisresetwheneverakeyotherthanKEY1istriggered(seeFigure1).

Sub-groupselection

WhenKEY1istriggeredwithpulses,adesiredsub-groupcanbeselectedbycontrollingitscorre-spondingpulsenumber.However,thefeaturesofKEY1havetobesetinthefollowingways:

-

¨

Eachkeyismappedtoagroupinthefunctiontable.Ifakeyisnotused,thegroupmappedtothatkeyisapieceofsilence.Thefollowingisanexampleofthefunctiontable:Group1Group2

sec.1+sec.2+sec.3+sec.4sec.3

¨

Asillustratedinthetable,voiceROMiscomposedof4sections,and5sectionsforthefunctiontable.IfKEY1ismomentarilytriggered,section1,section2,section3andsection4areplayedinsequenceandthenstopped.TriggeringKEY2playssection3.

·KEY1asasequentialkey

Sequential-Retriggerable

-Minimumkeydebouncetime(@1.2ms,fOSC=2MHz)Forinstance,ifsub-group1-3isthepreviousplayinggroup,sub-group1-5willstartplayingafter2pulsesareappliedtoKEY1,andsoon.

TomakeaselectionofKEY1sub-groupsmoreeasy,KEY2shouldbeprogrammedassilence.Thenthissi-lencekeyhastobetriggeredtoresetKEY1.Bysodo-ing,theplayingsub-groupofKEY1isdirectlyspecifiedbythepulsenumberappliedtoKEY1(seeFigure2).

WhenKEY1isoptionedasasequentialkey,itcanin-cludemultiplegroups(sub-groups)inthefunctionta-ble.However,KEY2isusedasadirectkeyexclusively

Figure1.ResetofKEY1PlayingSequenceRev.1.4011March1,2005

元器件交易网www.cecb2b.com

HT81XXXFigure2.KEY1Sub-GroupSelection

·KEY6asastopkey(bymaskoption)

¨

WhenKEY6functionsasastopkey,anyvoiceoutputcanbestoppedbypressingKEY6.

·KEY2~KEY6asarepeatkey

Asarepeatkey,thesectionsincludedcanbeplayedsequentiallyandrepeatedlyuntilotherkeyinputistriggered.KeyFeatures

·Keypriority

Normaltrigger

Whenoneofthetwokeysispressedandhelddown,thecorrespondinggroupwillcontinueplay-ing.Oncethepressedkeyisreleased,thegroupwillnotstopuntiltheincludedsectionsareallcom-pleted.

Whensixkeysaretriggeredsimultaneously,theout-putvoiceisdeterminedbythekeypriorityasshownbelow:

KEY1>KEY2>KEY3>KEY4>KEY5>KEY6

·Keydebouncetime

FLAG

Whenvoicesareplaying,bothFLAG1andFLAG2pinsareactivatedtooutputoneofthefollowingsignalsthroughcodeoption.

FLAG1canbeoptionedasoneofthefollowingsignaloutputs:

OFF,3HzBflash,Busy,6HzBflash,3hz,6HzorEnd-pulseoutput

FLAG2,ontheotherhand,canbesetasoneofthefol-lowingsignaloutputs:

OFF,3Hzflash,6Hzflash,orBusyoutput.

·3Hz/3HzBflash

Therearethreekindsofkey-indebouncetimetobeselectedbymaskoption,namely,1.2ms,22ms,45ms.Thekeydebouncetimevarieswiththevalueofthesystemfrequency.

·Pull-highresistance

Fourkindsofkeyinputpinpull-highresistancecanbeselectedbymaskoption,namely,0kW,50kW,100kWand200kW.TheresistancemayvarywithVDD,temperaturesandthechipitselfduetopro-cessvariations.

·Triggermode

Thetwokeyscanoptionedasone-shottriggermodeornormalmode.

¨

Oneshot

Whenoneofthesixkeys(KEY1~KEY6)ispressedmomentarilyorhelddown,thegroupcorrespondingtothatkeywillplayonce.

Whenvoicesareplaying,FLAG1aswellasFLAG2pinoutputsa3HzsignaltodriveaLED.Thesignalisactivelow,25%duty.Oncethevoiceoutputistermi-nated,theFLAG1andFLAG2pinsbecomefloatingoutputs.WhentheFLAG1andtheFLAG2pinsareoptionedas3HzBand3Hzoutput,theywillalternatelyoutputata3Hzrate.

Rev.1.4012March1,2005

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HT81XXX·6Hz/6HzBflash

VolumeControl

Thefunctionofthevolumecontrolcanbesetbymaskoption.Acodeiswritteninthefunctiontableforthepur-poseofcontrollingthevolumeofeachsectionoutputaf-terthevolumecontrolfunctionischosen.Therearetwovolumeoptions,namely;fullrangeandhalfrange.I/O2

TheI/O2pinisaPWMstructure.ItoutputsvoicesignalstodriveaspeakerthroughanexternalNPNtransistorwhenthechipisactive.TheOUT1andOUT2pinsareconfiguredasPWMstructurewhichcandrive8/16/32Wspeakerdirectly.

Whenvoicesareplaying,theFLAG1pinoutputsa6HzsignaltodriveaLED.Thesignalisactivelow,25%duty.Oncethevoiceoutputisterminated,theFLAG1pinbecomesafloatingoutput.WhentheFLAG1andtheFLAG2pinsareoptionedas6HzBand6Hzoutputs,theywillalternatelyoutputata6Hzrate.

An8050typetransistorwithhFE@150isrecommendedforanoutputdriver.

·BusyoutputWhenavoicegroupisplaying,theoutputsofbothFLAG1andFLAG2areturnedlow,indicatingthatthechipisbusy.

Inadditiontotheabove-statedoutputsignals,FLAG1canalsogenerateoneofthefollowingsignalsbycodeoption:

¨

End-pulseoutput

Whenthevoiceoutputiscompleted,theFLAG1pinoutputsanactivelowpulse.Thepulsewidthcanbeprogrammeddependingonthecustomer¢srequire-ments.

TheFLAG1aswellasFLAG2pinsarebothfloatingoutputswhenthechipisinthestandbystate.Rev.1.4013March1,2005

元器件交易网www.cecb2b.com

HT81XXXApplicationCircuits

MaskType

Rev.1.40

14March1,2005

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HT81XXXRev.1.4015March1,2005

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HT81XXXOTPType

Rev.1.40

16March1,2005

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HT81XXXRev.1.4017March1,2005

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HT81XXXPackageInformation

16-pinDIP(300mil)OutlineDimensions(Plastic)

SymbolABCDEFGHIa

Dimensionsinmil

Min.7452401251251650¾2953350°

Nom.¾¾¾¾¾¾100¾¾¾

Max.7752601351452070¾31537515°

Rev.1.4018March1,2005

元器件交易网www.cecb2b.com

HT81XXXHoltekSemiconductorInc.(Headquarters)

No.3,CreationRd.II,SciencePark,Hsinchu,TaiwanTel:886-3-563-1999Fax:886-3-563-1189http://www.holtek.com.tw

HoltekSemiconductorInc.(TaipeiSalesOffice)

4F-2,No.3-2,YuanQuSt.,NankangSoftwarePark,Taipei115,TaiwanTel:886-2-2655-7070Fax:886-2-2655-7373

Fax:886-2-2655-7383(Internationalsaleshotline)

HoltekSemiconductorInc.(ShanghaiSalesOffice)

7thFloor,Building2,No.889,YiShanRd.,Shanghai,China200233Tel:021-6485-5560Fax:021-6485-0313

http://www.holtek.com.cn

HoltekSemiconductorInc.(ShenzhenSalesOffice)

43F,SEGPlaza,ShenNanZhongRoad,Shenzhen,China518031Tel:0755-8346-5589Fax:0755-8346-5590ISDN:0755-8346-5591

HoltekSemiconductorInc.(BeijingSalesOffice)

Suite1721,JinyuTower,A129WestXuanWuMenStreet,XichengDistrict,Beijing,China100031Tel:010-6641-0030,6641-7751,6641-7752Fax:010-6641-0125

HolmateSemiconductor,Inc.(NorthAmericaSalesOffice)46712FremontBlvd.,Fremont,CA94538Tel:510-252-9880Fax:510-252-9885

http://www.holmate.com

CopyrightÓ2005byHOLTEKSEMICONDUCTORINC.

TheinformationappearinginthisDataSheetisbelievedtobeaccurateatthetimeofpublication.However,Holtekas-sumesnoresponsibilityarisingfromtheuseofthespecificationsdescribed.TheapplicationsmentionedhereinareusedsolelyforthepurposeofillustrationandHoltekmakesnowarrantyorrepresentationthatsuchapplicationswillbesuitablewithoutfurthermodification,norrecommendstheuseofitsproductsforapplicationthatmaypresentarisktohumanlifeduetomalfunctionorotherwise.Holtek¢sproductsarenotauthorizedforuseascriticalcomponentsinlifesupportdevicesorsystems.Holtekreservestherighttoalteritsproductswithoutpriornotification.Forthemostup-to-dateinformation,pleasevisitourwebsiteathttp://www.holtek.com.tw.

Rev.1.4019March1,2005