licensesjrzj
jrzj com 时间:2021-03-02 阅读:()
SMSCCOM20019IPage1Rev.
09-25-07PRODUCTPREVIEWCOM20019ICostCompetitiveARCNET(ANSI878.
1)Controllerwith2Kx8On-ChipRAMDataBriefProductFeaturesNewFeatures:DataRatesupto312.
5KbpsProgrammableReconfigurationTimes28PinPLCCand48PinTQFPPackages;Lead-freeRoHSCompliantPackagesalsoAvailableIdealforIndustrial/Factory/BuildingAutomationandTransportationApplicationsDeterministic,(ANSI878.
1),TokenPassingARCNETProtocolMinimalMicrocontrollerandMediaInterfaceLogicRequiredFlexibleInterfaceForUseWithAllMicrocontrollersorMicroprocessorsAutomaticallyDetectsTypeofMicrocontrollerInterface2Kx8On-ChipDualPortRAMCommandChainingforPacketQueuingSequentialAccesstoInternalRAMSoftwareProgrammableNodeIDEight,256BytePagesAllowFourPagesTXandRXPlusScratch-PadMemoryNextIDReadableInternalClockScalerforAdjustingNetworkSpeedOperatingTemperatureRangeof-40oCto+85oCSelf-ReconfigurationProtocolSupportsupto255NodesSupportsVariousNetworkTopologies(Star,Tree,Bus.
.
.
)CMOS,Single+5VSupplyDuplicateNodeIDDetectionPowerfulDiagnosticsReceiveAllPacketsModeFlexibleMediaInterface:RS485DifferentialDriverInterfaceForLowCost,LowPower,HighReliabilityORDERINGINFORMATIONOrderNumbers:COM20019ILJPfor28pinPLCCpackage;COM20019I-DZDfor28pinPLCClead-freeRoHSCompliantpackageCOM20019I-HDfor48pinTQFPpackage;COM20019I-HTfor48pinTQFPlead-freeRoHSCompliantpackageRev.
09-25-07Page2SMSCCOM20019IPRODUCTPREVIEW80ARKAYDRIVE,HAUPPAUGE,NY11788(631)435-6000,FAX(631)273-3123Copyright2007SMSCoritssubsidiaries.
Allrightsreserved.
CircuitdiagramsandotherinformationrelatingtoSMSCproductsareincludedasameansofillustratingtypicalapplications.
Consequently,completeinformationsufficientforconstructionpurposesisnotnecessarilygiven.
Althoughtheinformationhasbeencheckedandisbelievedtobeaccurate,noresponsibilityisassumedforinaccuracies.
SMSCreservestherighttomakechangestospecificationsandproductdescriptionsatanytimewithoutnotice.
ContactyourlocalSMSCsalesofficetoobtainthelatestspecificationsbeforeplacingyourproductorder.
TheprovisionofthisinformationdoesnotconveytothepurchaserofthedescribedsemiconductordevicesanylicensesunderanypatentrightsorotherintellectualpropertyrightsofSMSCorothers.
AllsalesareexpresslyconditionalonyouragreementtothetermsandconditionsofthemostrecentlydatedversionofSMSC'sstandardTermsofSaleAgreementdatedbeforethedateofyourorder(the"TermsofSaleAgreement").
Theproductmaycontaindesigndefectsorerrorsknownasanomalieswhichmaycausetheproduct'sfunctionstodeviatefrompublishedspecifications.
Anomalysheetsareavailableuponrequest.
SMSCproductsarenotdesigned,intended,authorizedorwarrantedforuseinanylifesupportorotherapplicationwhereproductfailurecouldcauseorcontributetopersonalinjuryorseverepropertydamage.
AnyandallsuchuseswithoutpriorwrittenapprovalofanOfficerofSMSCandfurthertestingand/ormodificationwillbefullyattheriskofthecustomer.
CopiesofthisdocumentorotherSMSCliterature,aswellastheTermsofSaleAgreement,maybeobtainedbyvisitingSMSC'swebsiteathttp://www.
smsc.
com.
SMSCisaregisteredtrademarkofStandardMicrosystemsCorporation("SMSC").
Productnamesandcompanynamesarethetrademarksoftheirrespectiveholders.
SMSCDISCLAIMSANDEXCLUDESANYANDALLWARRANTIES,INCLUDINGWITHOUTLIMITATIONANYANDALLIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSE,TITLE,ANDAGAINSTINFRINGEMENTANDTHELIKE,ANDANYANDALLWARRANTIESARISINGFROMANYCOURSEOFDEALINGORUSAGEOFTRADE.
INNOEVENTSHALLSMSCBELIABLEFORANYDIRECT,INCIDENTAL,INDIRECT,SPECIAL,PUNITIVE,ORCONSEQUENTIALDAMAGES;ORFORLOSTDATA,PROFITS,SAVINGSORREVENUESOFANYKIND;REGARDLESSOFTHEFORMOFACTION,WHETHERBASEDONCONTRACT;TORT;NEGLIGENCEOFSMSCOROTHERS;STRICTLIABILITY;BREACHOFWARRANTY;OROTHERWISE;WHETHERORNOTANYREMEDYOFBUYERISHELDTOHAVEFAILEDOFITSESSENTIALPURPOSE,ANDWHETHERORNOTSMSCHASBEENADVISEDOFTHEPOSSIBILITYOFSUCHDAMAGES.
SMSCCOM20019IPage3Rev.
09-25-07PRODUCTPREVIEWGeneralDescriptionSMSC'sCOM20019IisamemberofthefamilyofEmbeddedARCNETControllersfromStandardMicrosystemsCorporation.
Thedeviceisageneralpurposecommunicationscontrollerfornetworkingmicrocontrollersandintelligentperipheralsinindustrial,automotive,andembeddedcontrolenvironmentsusinganARCNETprotocolengine.
Theflexiblemicrocontrollerandmediainterfaces,eight-pagemessagesupport,andextendedtemperaturerangeoftheCOM20019Imakeittheonlytruenetworkcontrolleroptimizedforuseinindustrial,embedded,andautomotiveapplications.
UsinganARCNETprotocolengineistheidealsolutionforembeddedcontrolapplicationsbecauseitprovidesadeterministictoken-passingprotocol,ahighlyreliableandprovennetworkingscheme,andadatarateofupto312.
5KbpswhenusingtheCOM20019I.
Atoken-passingprotocolprovidespredictableresponsetimesbecauseeachnetworkeventoccurswithinapredeterminedtimeinterval,baseduponthenumberofnodesonthenetwork.
ThedeterministicnatureofARCNETisessentialinrealtimeapplications.
Theintegrationofthe2Kx8RAMbufferon-chip,theCommandChainingfeature,themaximumdatarate,andtheinternaldiagnosticsmaketheCOM20019Ithehighestperformanceembeddedcommunicationsdeviceavailable.
WithonlyoneCOM20019Iandonemicrocontroller,acompletecommunicationsnodemaybeimplemented.
Rev.
09-25-07Page4SMSCCOM20019IPRODUCTPREVIEWBlockDiagramFigure1-InternalBlockDiagramMICRO-SEQUENCERANDWORKINGREGISTERSSTATUS/COMMANDREGISTERRESETLOGICRECONFIGURATIONTIMERNODEIDLOGICOSCILLATORTX/RXLOGICADDITIONALREGISTERSADDRESSDECODINGCIRCUITRY2Kx8AD0-AD2,BUSARBITRATIONCIRCUITRYnPULSE1nPULSE2nTXENnINTRnRESETRAMA0/nMUXA1A2/BALEnRD/nDSnWR/DIRnCSD3-D7RXINXTAL1XTAL2SMSCCOM20019IPage5Rev.
09-25-07PRODUCTPREVIEWPackageOutlines28-PinPLCCPackageOutlineandParametersAA1BB1CDD1D2D3EFGR.
160-.
180.
090-.
120.
013-.
021.
026-.
032.
020-.
045.
485-.
495.
450-.
456.
390-.
430.
300REF.
050BSC.
042-.
056.
042-.
048.
025-.
045DIM28LJ.
000-.
020NOTES:Alldimensionsareininches.
Circleindicatingpin1canappearonatopsurfaceasshownonthedrawingorrightaboveitonabevelededge.
1.
2.
PINNO.
1GEJD3JD1DJB1BAA1CD2FRBasePlaneSeatingPlaneRev.
09-25-07Page6SMSCCOM20019IPRODUCTPREVIEW48-PinTQFPPackageOutlineandParametersMINNOMINALMAXREMARKA~~1.
6OverallPackageHeightA10.
050.
100.
15StandoffA21.
351.
401.
45BodyThicknessD8.
809.
009.
20XSpanD/24.
404.
504.
601/2XSpanMeasurefromCenterlineD16.
907.
007.
10XbodySizeE8.
809.
009.
10YSpanE/24.
404.
504.
601/2YSpanMeasurefromCenterlineE16.
907.
007.
10YbodySizeH0.
09~0.
20LeadFrameThicknessL0.
450.
600.
75LeadFootLengthfromCenterlineL1~1.
00~LeadLengthe0.
50BasicLeadPitchθ0o~7oLeadFootAngleW0.
17~0.
27LeadWidthR10.
08~~LeadShoulderRadiusR20.
08~0.
20LeadFootRadiusccc~~0.
0762Coplanarity(Assemblers)ccc~~0.
08Coplanarity(TestHouse)Note:ControllingUnit:millimeterMouserElectronicsAuthorizedDistributorClicktoViewPricing,Inventory,Delivery&LifecycleInformation:Microchip:COM20019I-DZD-TRCOM20019I-DZD
09-25-07PRODUCTPREVIEWCOM20019ICostCompetitiveARCNET(ANSI878.
1)Controllerwith2Kx8On-ChipRAMDataBriefProductFeaturesNewFeatures:DataRatesupto312.
5KbpsProgrammableReconfigurationTimes28PinPLCCand48PinTQFPPackages;Lead-freeRoHSCompliantPackagesalsoAvailableIdealforIndustrial/Factory/BuildingAutomationandTransportationApplicationsDeterministic,(ANSI878.
1),TokenPassingARCNETProtocolMinimalMicrocontrollerandMediaInterfaceLogicRequiredFlexibleInterfaceForUseWithAllMicrocontrollersorMicroprocessorsAutomaticallyDetectsTypeofMicrocontrollerInterface2Kx8On-ChipDualPortRAMCommandChainingforPacketQueuingSequentialAccesstoInternalRAMSoftwareProgrammableNodeIDEight,256BytePagesAllowFourPagesTXandRXPlusScratch-PadMemoryNextIDReadableInternalClockScalerforAdjustingNetworkSpeedOperatingTemperatureRangeof-40oCto+85oCSelf-ReconfigurationProtocolSupportsupto255NodesSupportsVariousNetworkTopologies(Star,Tree,Bus.
.
.
)CMOS,Single+5VSupplyDuplicateNodeIDDetectionPowerfulDiagnosticsReceiveAllPacketsModeFlexibleMediaInterface:RS485DifferentialDriverInterfaceForLowCost,LowPower,HighReliabilityORDERINGINFORMATIONOrderNumbers:COM20019ILJPfor28pinPLCCpackage;COM20019I-DZDfor28pinPLCClead-freeRoHSCompliantpackageCOM20019I-HDfor48pinTQFPpackage;COM20019I-HTfor48pinTQFPlead-freeRoHSCompliantpackageRev.
09-25-07Page2SMSCCOM20019IPRODUCTPREVIEW80ARKAYDRIVE,HAUPPAUGE,NY11788(631)435-6000,FAX(631)273-3123Copyright2007SMSCoritssubsidiaries.
Allrightsreserved.
CircuitdiagramsandotherinformationrelatingtoSMSCproductsareincludedasameansofillustratingtypicalapplications.
Consequently,completeinformationsufficientforconstructionpurposesisnotnecessarilygiven.
Althoughtheinformationhasbeencheckedandisbelievedtobeaccurate,noresponsibilityisassumedforinaccuracies.
SMSCreservestherighttomakechangestospecificationsandproductdescriptionsatanytimewithoutnotice.
ContactyourlocalSMSCsalesofficetoobtainthelatestspecificationsbeforeplacingyourproductorder.
TheprovisionofthisinformationdoesnotconveytothepurchaserofthedescribedsemiconductordevicesanylicensesunderanypatentrightsorotherintellectualpropertyrightsofSMSCorothers.
AllsalesareexpresslyconditionalonyouragreementtothetermsandconditionsofthemostrecentlydatedversionofSMSC'sstandardTermsofSaleAgreementdatedbeforethedateofyourorder(the"TermsofSaleAgreement").
Theproductmaycontaindesigndefectsorerrorsknownasanomalieswhichmaycausetheproduct'sfunctionstodeviatefrompublishedspecifications.
Anomalysheetsareavailableuponrequest.
SMSCproductsarenotdesigned,intended,authorizedorwarrantedforuseinanylifesupportorotherapplicationwhereproductfailurecouldcauseorcontributetopersonalinjuryorseverepropertydamage.
AnyandallsuchuseswithoutpriorwrittenapprovalofanOfficerofSMSCandfurthertestingand/ormodificationwillbefullyattheriskofthecustomer.
CopiesofthisdocumentorotherSMSCliterature,aswellastheTermsofSaleAgreement,maybeobtainedbyvisitingSMSC'swebsiteathttp://www.
smsc.
com.
SMSCisaregisteredtrademarkofStandardMicrosystemsCorporation("SMSC").
Productnamesandcompanynamesarethetrademarksoftheirrespectiveholders.
SMSCDISCLAIMSANDEXCLUDESANYANDALLWARRANTIES,INCLUDINGWITHOUTLIMITATIONANYANDALLIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSE,TITLE,ANDAGAINSTINFRINGEMENTANDTHELIKE,ANDANYANDALLWARRANTIESARISINGFROMANYCOURSEOFDEALINGORUSAGEOFTRADE.
INNOEVENTSHALLSMSCBELIABLEFORANYDIRECT,INCIDENTAL,INDIRECT,SPECIAL,PUNITIVE,ORCONSEQUENTIALDAMAGES;ORFORLOSTDATA,PROFITS,SAVINGSORREVENUESOFANYKIND;REGARDLESSOFTHEFORMOFACTION,WHETHERBASEDONCONTRACT;TORT;NEGLIGENCEOFSMSCOROTHERS;STRICTLIABILITY;BREACHOFWARRANTY;OROTHERWISE;WHETHERORNOTANYREMEDYOFBUYERISHELDTOHAVEFAILEDOFITSESSENTIALPURPOSE,ANDWHETHERORNOTSMSCHASBEENADVISEDOFTHEPOSSIBILITYOFSUCHDAMAGES.
SMSCCOM20019IPage3Rev.
09-25-07PRODUCTPREVIEWGeneralDescriptionSMSC'sCOM20019IisamemberofthefamilyofEmbeddedARCNETControllersfromStandardMicrosystemsCorporation.
Thedeviceisageneralpurposecommunicationscontrollerfornetworkingmicrocontrollersandintelligentperipheralsinindustrial,automotive,andembeddedcontrolenvironmentsusinganARCNETprotocolengine.
Theflexiblemicrocontrollerandmediainterfaces,eight-pagemessagesupport,andextendedtemperaturerangeoftheCOM20019Imakeittheonlytruenetworkcontrolleroptimizedforuseinindustrial,embedded,andautomotiveapplications.
UsinganARCNETprotocolengineistheidealsolutionforembeddedcontrolapplicationsbecauseitprovidesadeterministictoken-passingprotocol,ahighlyreliableandprovennetworkingscheme,andadatarateofupto312.
5KbpswhenusingtheCOM20019I.
Atoken-passingprotocolprovidespredictableresponsetimesbecauseeachnetworkeventoccurswithinapredeterminedtimeinterval,baseduponthenumberofnodesonthenetwork.
ThedeterministicnatureofARCNETisessentialinrealtimeapplications.
Theintegrationofthe2Kx8RAMbufferon-chip,theCommandChainingfeature,themaximumdatarate,andtheinternaldiagnosticsmaketheCOM20019Ithehighestperformanceembeddedcommunicationsdeviceavailable.
WithonlyoneCOM20019Iandonemicrocontroller,acompletecommunicationsnodemaybeimplemented.
Rev.
09-25-07Page4SMSCCOM20019IPRODUCTPREVIEWBlockDiagramFigure1-InternalBlockDiagramMICRO-SEQUENCERANDWORKINGREGISTERSSTATUS/COMMANDREGISTERRESETLOGICRECONFIGURATIONTIMERNODEIDLOGICOSCILLATORTX/RXLOGICADDITIONALREGISTERSADDRESSDECODINGCIRCUITRY2Kx8AD0-AD2,BUSARBITRATIONCIRCUITRYnPULSE1nPULSE2nTXENnINTRnRESETRAMA0/nMUXA1A2/BALEnRD/nDSnWR/DIRnCSD3-D7RXINXTAL1XTAL2SMSCCOM20019IPage5Rev.
09-25-07PRODUCTPREVIEWPackageOutlines28-PinPLCCPackageOutlineandParametersAA1BB1CDD1D2D3EFGR.
160-.
180.
090-.
120.
013-.
021.
026-.
032.
020-.
045.
485-.
495.
450-.
456.
390-.
430.
300REF.
050BSC.
042-.
056.
042-.
048.
025-.
045DIM28LJ.
000-.
020NOTES:Alldimensionsareininches.
Circleindicatingpin1canappearonatopsurfaceasshownonthedrawingorrightaboveitonabevelededge.
1.
2.
PINNO.
1GEJD3JD1DJB1BAA1CD2FRBasePlaneSeatingPlaneRev.
09-25-07Page6SMSCCOM20019IPRODUCTPREVIEW48-PinTQFPPackageOutlineandParametersMINNOMINALMAXREMARKA~~1.
6OverallPackageHeightA10.
050.
100.
15StandoffA21.
351.
401.
45BodyThicknessD8.
809.
009.
20XSpanD/24.
404.
504.
601/2XSpanMeasurefromCenterlineD16.
907.
007.
10XbodySizeE8.
809.
009.
10YSpanE/24.
404.
504.
601/2YSpanMeasurefromCenterlineE16.
907.
007.
10YbodySizeH0.
09~0.
20LeadFrameThicknessL0.
450.
600.
75LeadFootLengthfromCenterlineL1~1.
00~LeadLengthe0.
50BasicLeadPitchθ0o~7oLeadFootAngleW0.
17~0.
27LeadWidthR10.
08~~LeadShoulderRadiusR20.
08~0.
20LeadFootRadiusccc~~0.
0762Coplanarity(Assemblers)ccc~~0.
08Coplanarity(TestHouse)Note:ControllingUnit:millimeterMouserElectronicsAuthorizedDistributorClicktoViewPricing,Inventory,Delivery&LifecycleInformation:Microchip:COM20019I-DZD-TRCOM20019I-DZD
云雀云（larkyun）低至368元/月，广州移动1Gbps带宽VDS（带100G防御），常州联通1Gbps带宽VDS
云雀云（larkyun）当前主要运作国内线路的机器，最大提供1Gbps服务器，有云服务器（VDS）、也有独立服务器，对接国内、国外的效果都是相当靠谱的。此外，还有台湾hinet线路的动态云服务器和静态云服务器。当前，larkyun对广州移动二期正在搞优惠促销！官方网站：https://larkyun.top付款方式：支付宝、微信、USDT广移二期开售8折折扣码：56NZVE0YZN （试用于常州联...
无忧云：洛阳/大连BGP云服务器38.4元/月,雅安物理机服务器315元/月起,香港荃湾CN2限时5折优惠
无忧云怎么样?无忧云是一家成立于2017年的老牌商家旗下的服务器销售品牌，现由深圳市云上无忧网络科技有限公司运营，是正规持证IDC/ISP/IRCS商家，主要销售国内、中国香港、国外服务器产品，线路有腾讯云国外线路、自营香港CN2线路等，都是中国大陆直连线路，非常适合免备案建站业务需求和各种负载较高的项目，同时国内服务器也有多个BGP以及高防节点，目前商家开启了夏日清凉补贴活动，商家的机器还是非常...
BuyVM($5/月）不限流量流媒体优化VPS主机 1GB内存
BuyVM商家属于比较老牌的服务商，早年有提供低价年付便宜VPS主机还记得曾经半夜的时候抢购的。但是由于这个商家风控非常严格，即便是有些是正常的操作也会导致被封账户，所以后来陆续无人去理睬，估计被我们风控的抢购低价VPS主机已经手足无措。这两年商家重新调整，而且风控也比较规范，比如才入手他们新上线的流媒体优化VPS主机也没有不适的提示。目前，BuyVM商家有提供新泽西、迈阿密等四个机房的VPS主机...
jrzj com为你推荐
-
96155北京住房公积金电话96155经常没人接？天府热线成都新闻热线是多少flash导航条如何添加FLASH导航条网店推广网站怎么免费推广淘宝店铺？神雕侠侣礼包大全神雕侠侣手游版四重大礼包怎么得到啊？xp系统停止服务xp系统停止服务怎么办？云挂机快手极速版后台云挂机辅?助各位用了吗？在哪找的？srv记录SRV记录的定义网站营运网站运营要学些什么？声母是什么什么是声母，什么是韵母