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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SP508E датащи(PDF) 2 Page - Exar Corporation |
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SP508E датащи(HTML) 2 Page - Exar Corporation |
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2 / 29 page  2 ExarCorporation48720KatoRoad,FremontCA,94538•50-668-707•www.exar.comSP508E_00_07242 T A=-40°Cto+85°CandVCC=+4.75Vto+5.25Vunlessotherwisenoted.TypicalvaluesareforTA=25CandVcc=5V. PARAMETER MIN. TYP. MAX. UNITSCONDITIONS LOGICINPUTS V IL 0.8 Volts V IH 2.0 Volts LOGICOUTPUTS V OL 0.4 Volts I OUT=–3.2mA V OH 2.4 Volts I OUT=.0mA V.28DRIVER DCParameters Outputs OpenCircuitVoltage ±5 Volts perFigure LoadedVoltage ±5.0 ±5 Volts perFigure2 Short-CircuitCurrent ±00 mA perFigure4,V OUT=0V Power-Off Impedance 300 Ω per Figure 5 AC Parameters Outputs TransitionTime .5 µs perFigure6;+3Vto-3V InstantaneousSlewRate 30 V/µs perFigure3 PropagationDelay t PHL 0.5 5 µs t PLH 0.5 5 µs Max.TransmissionRate 20 230 kbps V.28RECEIVER DCParameters Inputs Input Impedance 3 7 kΩ per Figure 7 Open-CircuitBias +2.0 Volts perFigure8 HIGHThreshold .7 3.0 Volts LOWThreshold 0.8 .2 Volts ACParameters PropagationDelay t PHL 50 00 500 ns t PLH 50 00 500 ns ABSOLUTEMAXIMUMRATINGS Thesearestressratingsonlyandfunctionaloperationofthe deviceattheseratingsoranyotherabovethoseindicatedin the operation sections of the specifications below is not implied. Exposuretoabsolutemaximumratingconditionsforextended periodsoftimemayaffectreliability. V CC.................................................................................................+7V InputVoltages: Logic................................................ -0.3Vto(V CC+0.5V) Drivers.............................................. -0.3Vto(V CC+0.5V) Receivers.............................................................±5.5V OutputVoltages: Logic................................................ -0.3Vto(V CC+0.5V) Drivers....................................................-7.5Vto+2.5V Receivers......................................... -0.3Vto(V CC+0.5V) StorageTemperature..................................................-65°Cto+50°C PowerDissipation...................................................................520mW (derate9.0mW/°Cabove+70°C) PackageDerating: ø JA...................................................................52.7°C/W ø JC.....................................................................6.5°C/W STORAGECONSIDERATIONS Due to the relatively large package size, storage in a low humidityenvironmentispreferred.Largehighdensityplastic packagesaremoisturesensitiveandshouldbestoredinDry VaporBarrierBags.Priortousage,thepartsshouldremain baggedandstoredbelow40°Cand60%RH.Ifthepartsare removedfromthebag,theyshouldbeusedwithin48hours orstoredinanenvironmentatorbelow20%RH.Iftheabove conditions cannot be followed, the parts should be baked forfourhoursat25°Cinordertoremovemoisturepriorto soldering.Exarshipsthe00-pinLQFPinDryVaporBarrier Bagswithahumidityindicatorcardanddesiccantpack.The humidityindicatorshouldbebelow30%RH. ELECTRICALSPECIFICATIONS |
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