《工学数字电路》PPT课件

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1、FundamentalsofDigitalCircuits1DigitalFundamentalsTenthEditionFloyd©2008PearsonEducationFundamentalsofDigitalCircuits2Recommended:清华大学电子学教研组编，阎石主编，数字电子技术基础，第四版，高等教育出版社，7-04-006696-3Recommended:王毓银主编，数字电路逻辑设计（脉冲与数字电路，第三版），高等教育出版社，7-04-007730-2FundamentalsofDigitalCirc

2、uits3数字电子技术基础FundamentalsofDigitalCircuits4数字电路逻辑设计FundamentalsofDigitalCircuits5Chapter1IntroductoryConceptsFundamentalsofDigitalCircuits6WhatisDigital?Howdoesdigitalsignalwork?WhyuseDigital?DigitalFundamentalsofDigitalCircuits7WhatisDigital?DigitalAnalogFundamenta

3、lsofDigitalCircuits81.1DigitalandAnalogsignals(quantity)AnalogsignalsContinuesintimedomainContinuesvaluese.g.Speaker,ThermometerTemperature(oC)Time(s)0FundamentalsofDigitalCircuits9SampledsignalsTemperrature0cTemperature(oC)Time(s)01234567891011121314Discreteintimed

4、omainContinuesvaluesFundamentalsofDigitalCircuits10Mostnaturalquantitiesthatweseeareanalogandvarycontinuously.Analogsystemscangenerallyhandlehigherpowerthandigitalsystems.Digitalsystemscanprocess,store,andtransmitdatamoreefficientlybutcanonlyassigndiscretevaluestoea

5、chpoint.AnalogQuantitiesFundamentalsofDigitalCircuits11DigitalSignalsDigitalSignalsDiscreteintimedomainDiscretevaluesFundamentalsofDigitalCircuits12AnalogExampleApublicaddresssystem,usedtoamplifysoundsothatitcanbeheardbylargeaudience,isoneexampleofanapplicationofana

6、logelectronics.FundamentalsofDigitalCircuits13DigitalExampleAcomputersystemisoneexampleofanapplicationofdigitalelectronics.FundamentalsofDigitalCircuits14Manysystemsuseamixofanaloganddigitalelectronicstotakeadvantageofeachtechnology.AtypicalCDplayeracceptsdigitaldat

7、afromtheCDdriveandconvertsittoananalogsignalforamplification.AnalogandDigitalSystemsAMixedSystemFundamentalsofDigitalCircuits15TheDigitalAdvantageDigitalhascertainadvantagesoveranalog,e.g.,digitaldatacanbestored,processed,andtransmittedmoreefficientlyandreliablythan

8、analogdata.FundamentalsofDigitalCircuits16TheDigitalSystemHierarchyGatesandFlip-FlopsGatesandFlip-Flopse.g.,Registers,Memories,Arithmeticu