參數(shù)資料
型號： SP508EF-L
廠商： Exar Corporation
文件頁數(shù)： 1/29頁
文件大?。?/td> 0K
描述： IC TXRX MULTIPROTOCOL 100LQFP
標準包裝： 90
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 8/8
規(guī)程： 多協(xié)議
電源電壓： 5V
安裝類型： 表面貼裝
封裝/外殼： 100-LQFP
供應(yīng)商設(shè)備封裝： 100-LQFP（14x14）
包裝： 托盤
其它名稱： 1016-1193
ExarCorporation48720KatoRoad,FremontCA,9453850-668-707www.exar.comSP508_00_02709
FEATURES
20MbpsDifferentialTransmissionRates
5kVESDToleranceforAnalogI/Os
InternalTransceiverTerminationResistors
forV./V.35
InterfaceModes:
–RS-232(V.28)
–EIA-530(V.0&V.)
–X.2(V.)
–EIA-530A(V.0&V.)
–RS-449/V.36
–V.35
(V.0&V.)
SoftwareSelectableProtocolswith3-BitWord
EightDriversandEightReceivers
V.35/V.ReceiverTerminationNetwork
DisableOption
InternalLineorDigitalLoopbackTesting
AdherestoNET/NET2andTBR-2Requirements
SP508
Rugged20Mbps,8ChannelMulti-ProtocolTransceiver
withProgrammableDCE/DTEandTerminationResistors
DESCRIPTION
TheSP508isamonolithicdevicethatsupportseight(8)popularserialinterfacestandardsfor
WideAreaNetwork(WAN)connectivity.TheSP508isfabricatedusingalowpowerBiCMOS
processtechnology,andincorporatesanExarregulatedchargepumpallowing+5Vonly
operation.Exar'spatentedchargepumpprovidesaregulatedoutputof+5.8V,whichwill
provideenoughvoltageforcompliantoperationinallmodes.Eight(8)driversandeight(8)
receivers can be configured via software for any of the above interface modes at any time.
TheSP508requiresnoadditionalexternalcomponentsforcompliantoperationforallofthe
eight(8)modesofoperationotherthanfourcapacitorsusedfortheinternalchargepump.
AllnecessaryterminationisintegratedwithintheSP508andisswitchablewhenV.35drivers
andV.35receivers,orwhenV.receiversareused.TheSP508providesthecontrolsand
transceiveravailabilityforoperatingaseitheraDTEorDCE.
AdditionalfeatureswiththeSP508includeinternalloopbackthatcanbeinitiatedinanyofthe
operatingmodesbyuseoftheLOOPBACKpin.Whileinloopbackmode,receiveroutputs
areinternallyconnectedtodriverinputscreatinganinternalsignalpathbypassingtheserial
communicationscontrollerfordiagnostictesting.TheSP508alsoincludesalatchenablepin
withthedriverandreceiveraddressdecoder.TheinternalV.orV.35receivertermination
canbeswitchedoffusingacontrolpin(TERM_OFF)formonitoringapplications.Alleight
(8)driversandreceiversintheSP508includeseparateenablepinsforaddedconvenience.
TheSP508isidealforWANserialportsinnetworkingequipmentsuchasrouters,access
concentrators,networkmuxes,DSU/CSU's,networkingtestequipment,andotheraccess
devices.
ApplicableU.S.Patents-5,306,954;andotherspatentspending
APPLICATIONS
Router
FrameRelay
CSU
DSU
PBX
SecureCommunicationTerminals
EasyFlow-ThroughPinout
+5VOnlyOperation
IndividualDriver/ReceiverEnable/DisableControls
OperatesinDTEorDCEMode
Now Available in Lead Free Packaging
Refertopage7forpinout
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