1.IntroductionThisdatasheetdescribesthefunctionalityoftheMFRC531IntegratedCircuit(IC).Itincludesthefunctionalandelectricalspecificationsandfromasystemandhardwareviewpointgivesdetailedinformationonhowtodesign-inthedevice.Remark:TheMFRC531supportsallvariantsoftheMIFAREMini,MIFARE1K,MIFARE4K,MIFAREUltralight,MIFAREDESFireEV1andMIFAREPlusRFidentificationprotocols.Toaidreadabilitythroughoutthisdatasheet,theMIFAREMini,MIFARE1K,MIFARE4K,MIFAREUltralight,MIFAREDESFireEV1andMIFAREPlusproductsandprotocolshavethegenericnameMIFARE.2.GeneraldescriptionTheMFRC531isamemberofanewfamilyofhighlyintegratedreaderICsforcontactlesscommunicationat13.56MHz.ThisfamilyofreaderICsprovide:•outstandingmodulationanddemodulationforpassivecontactlesscommunication•awiderangeofmethodsandprotocols•asmall,fullyintegratedpackage•pincompatibilitywiththeMFRC500,MFRC530andSLRC400AllprotocollayersoftheISO/IEC14443AandISO/IEC14443Bcommunicationstandardsaresupportedprovided:•additionalcomponents,suchastheoscillator,powersupply,coiletc.arecorrectlyapplied.•standardizedprotocols,suchasISO/IEC14443-4and/orISO/IEC14443BanticollisionarecorrectlyimplementedUsingthisNXPSemiconductors’deviceaccordingtoISO/IEC14443Bmayinfringethirdpartypatentrights.TheMFRC531supportscontactlesscommunicationusingMIFAREhigherbaudrates(seeSection9.12onpage38).Thereceivermoduleprovidesarobustandefficientdemodulation/decodingcircuitryimplementationforcompatibletranspondersignals(seeSection9.10onpage32).Thedigitalmodule,managesthecompleteISO/IEC14443standardframinganderrordetection(parityandCRC).Inaddition,itsupportsthefastMIFAREsecurityalgorithmforauthenticatingtheMIFAREproducts(seeSection9.14onpage40).MFRC531ISO/IEC14443readerICRev.3.4—26January2010056634ProductdatasheetPUBLICMFRC531_34©NXPB.V.2010.Allrightsreserved.ProductdatasheetPUBLICRev.3.4—26January20100566342of116NXPSemiconductorsMFRC531ISO/IEC14443readerICTheinternaltransmittermodule(Section9.9onpage29)candirectlydriveanantennadesignedforaproximityoperatingdistanceupto100mmwithoutanyadditionalactivecircuitry.Aparallelinterfacecanbedirectlyconnectedtoany8-bitmicroprocessortoensurereader/terminaldesignflexibility.Inaddition,SerialPeripheralInterface(SPI)compatibilityissupported(seeSection9.1.4onpage9).3.Features3.1GeneralHighlyintegratedanalogcircuitryfordemodulatinganddecodingcard/labelresponseBufferedoutputdriversenableantennaconnectionusingtheminimumofexternalcomponentsProximityoperatingdistanceupto100mmSupportsbothISO/IEC14443AandISO/IEC14443BstandardsSupportstheMIFAREMini,MIFARE1K,MIFARE4KprotocolsContactlesscommunicationatMIFAREhigherbaudrates(upto424kBd)Crypto1andsecurenon-volatileinternalkeymemoryPin-compatiblewiththeMFRC500,MFRC530andtheSLRC400ParallelmicroprocessorinterfacewithinternaladdresslatchandIRQlineSPIcompatibilityFlexibleinterrupthandlingAutomaticdetectionofparallelmicroprocessorinterfacetype64-bytesendandreceiveFIFObufferHardresetwithlowpowerfunctionSoftwarecontrolledPower-downmodeProgrammabletimerUniqueserialnumberUserprogrammablestart-upconfigurationBit-orientedandbyteorientedframingIndependentpowersupplypinsforanalog,digitalandtransmittermodulesInternaloscillatorbufferoptimizedforlowphasejitterenables13.56MHzquartzconnectionClockfrequencyfiltering3.3Vto5Voperationfortransmitterinshortrangeandproximityapplications3.3Vor5VoperationforthedigitalmoduleMFRC531_34©NXPB.V.2010.Allrightsreserved.ProductdatasheetPUBLICRev.3.4—26January20100566343of116NXPSemiconductorsMFRC531ISO/IEC14443readerIC4.ApplicationsElectronicpaymentsystemsIdentificationsystemsAccesscontrolsystemsSubscriberservicesBankingsystemsDigitalcontentsystems5.Quickreferencedata6.OrderinginformationTable1.QuickreferencedataSymbolParameterConditionsMinTypMaxUnitTambambienttemperature−40-+150°CTstgstoragetemperature−40-+150°CVDDDdigitalsupplyvoltage−0.556VVDDAanalogsupplyvoltage−0.556VVDD(TVDD)TVDDsupplyvoltage−0.556V|Vi|inputvoltage(absolutevalue)onanydigitalpintoDVSS−0.5-VDDD+0.5VonpinRXtoAVSS−0.5-VDDA+0.5VILIinputleakagecurrent−1.0-−1.0mAIDD(TVDD)TVDDsupplycurrentcontinuouswave--150mATable2.OrderinginformationTypenumberPackageNameDescriptionVersionMFRC53101T/0FESO32plasticsmalloutlinepackage;32leads;bodywidth7.5mmSOT287-1MFRC531_34©NXPB.V.2010.Allrightsreserved.ProductdatasheetPUBLICRev.3.4—26January20100566344of116NXPSemiconductorsMFRC531ISO/IEC14443readerIC7.BlockdiagramFig1.MFRC531blockdiagram001aal218FIFOCONTROL64-BYTEFIFOMASTERKEYBUFFERCYRPTO1UNITCONTROLREGISTERBANKNWRNRDNCSALEA0A1A210119212223241314151617181920AD0toAD7/D0toD7STATEMACHINEMFRC531COMMANDREGISTERPROGRAMMABLETIMERINTERRUPTCONTROLCRC16/CRC8GENERATIONANDCHECKPARALLEL/SERIALCONVERTERBITCOUNTERPARITYGENERATIONANDCHECKFRAMEGENERATIONANDCHECKSERIALDATASWITCHBITDECODINGBITENCODING32×16-BYTEEEPROMEEPROMACCESSCONTROL32-BITPSEUDORANDOMGENERATORAMPLITUDERATINGCLOCKGENERATION,FILTERINGANDDISTRIBUTIONOSCILLATORLEVELSHIFTERSCORRELATIONANDBITDECODINGREFERENCEVOLTAGEQ-CHANNELAMPLIFIERQ-CHANNELDEMODULATORI-CHANNELAMPLIFIERANALOGTESTMULTIPLEXERI-CHANNELDEMODULATOR