AT91SAM7X512_AT91SAM7X256_AT91SAM7X128

Features•IncorporatestheARM7TDMI®ARM®Thumb®Processor–High-performance32-bitRISCArchitecture–High-density16-bitInstructionSet�LeaderinMIPS/Watt–EmbeddedICE™In-circuitEmulation,DebugCommunicationChannelSupport�InternalHigh-speedFlash–512Kbytes(AT91SAM7X512)OrganizedinTwoBanksof1024Pagesof256Bytes(DualPlane)–256Kbytes(AT91SAM7X256)Organizedin1024Pagesof256Bytes(SinglePlane)–128Kbytes(AT91SAM7X128)Organizedin512Pagesof256Bytes(SinglePlane)�SingleCycleAccessatUpto30MHzinWorstCaseConditions�PrefetchBufferOptimizingThumbInstructionExecutionatMaximumSpeed�PageProgrammingTime:6ms,IncludingPageAuto-erase,FullEraseTime:15ms�10,000WriteCycles,10-yearDataRetentionCapability,SectorLockCapabilities,FlashSecurityBit�FastFlashProgrammingInterfaceforHighVolumeProduction�InternalHigh-speedSRAM,Single-cycleAccessatMaximumSpeed–128Kbytes(AT91SAM7X512)–64Kbytes(AT91SAM7X256)–32Kbytes(AT91SAM7X128)�MemoryController(MC)–EmbeddedFlashController,AbortStatusandMisalignmentDetection�ResetController(RSTC)–BasedonPower-onResetCellsandLow-powerFactory-calibratedBrownoutDetector–ProvidesExternalResetSignalShapingandResetSourceStatus�ClockGenerator(CKGR)–Low-powerRCOscillator,3to20MHzOn-chipOscillatorandonePLL�PowerManagementController(PMC)–PowerOptimizationCapabilities,IncludingSlowClockMode(Downto500Hz)andIdleMode–FourProgrammableExternalClockSignals�AdvancedInterruptController(AIC)–IndividuallyMaskable,Eight-levelPriority,VectoredInterruptSources–TwoExternalInterruptSourcesandOneFastInterruptSource,SpuriousInterruptProtected�DebugUnit(DBGU)–2-wireUARTandSupportforDebugCommunicationChannelinterrupt,ProgrammableICEAccessPrevention–ModeforGeneralPurpose2-wireUARTSerialCommunication�PeriodicIntervalTimer(PIT)–20-bitProgrammableCounterplus12-bitIntervalCounter�WindowedWatchdog(WDT)–12-bitkey-protectedProgrammableCounter–ProvidesResetorInterruptSignalstotheSystem–CounterMayBeStoppedWhiletheProcessorisinDebugStateorinIdleModeAT91ARMThumb-basedMicrocontrollersAT91SAM7X512AT91SAM7X256AT91SAM7X128Preliminary6120H–ATARM–17-Feb-08BDTIC–ATARM–17-Feb-08AT91SAM7X512/256/128Preliminary�Real-timeTimer(RTT)–32-bitFree-runningCounterwithAlarm–RunsOfftheInternalRCOscillator�TwoParallelInput/OutputControllers(PIO)–Sixty-twoProgrammableI/OLinesMultiplexedwithuptoTwoPeripheralI/Os–InputChangeInterruptCapabilityonEachI/OLine–IndividuallyProgrammableOpen-drain,Pull-upResistorandSynchronousOutput�ThirteenPeripheralDMAController(PDC)Channels�OneUSB2.0FullSpeed(12Mbitspersecond)DevicePort–On-chipTransceiver,1352-byteConfigurableIntegratedFIFOs�OneEthernetMAC10/100base-T–MediaIndependentInterface(MII)orReducedMediaIndependentInterface(RMII)–Integrated28-byteFIFOsandDedicatedDMAChannelsforTransmitandReceive�OnePart2.0AandPart2.0BCompliantCANController–EightFully-programmableMessageObjectMailboxes,16-bitTimeStampCounter�OneSynchronousSerialController(SSC)–IndependentClockandFrameSyncSignalsforEachReceiverandTransmitter–I²SAnalogInterfaceSupport,TimeDivisionMultiplexSupport–High-speedContinuousDataStreamCapabilitieswith32-bitDataTransfer�TwoUniversalSynchronous/AsynchronousReceiverTransmitters(USART)–IndividualBaudRateGenerator,IrDA®InfraredModulation/Demodulation–SupportforISO7816T0/T1SmartCard,HardwareHandshaking,RS485Support–FullModemLineSupportonUSART1�TwoMaster/SlaveSerialPeripheralInterfaces(SPI)–8-to16-bitProgrammableDataLength,FourExternalPeripheralChipSelects�OneThree-channel16-bitTimer/Counter(TC)–ThreeExternalClockInputs,TwoMulti-purposeI/OPinsperChannel–DoublePWMGeneration,Capture/WaveformMode,Up/DownCapability�OneFour-channel16-bitPowerWidthModulationController(PWMC)�OneTwo-wireInterface(TWI)–MasterModeSupportOnly,AllTwo-wireAtmelEEPROMsandI2CCompatibleDevicesSupported�One8-channel10-bitAnalog-to-DigitalConverter,FourChannelsMultiplexedwithDigitalI/Os�SAM-BA®BootAssistance–DefaultBootprogram–InterfacewithSAM-BAGraphicUserInterface�IEEE®1149.1JTAGBoundaryScanonAllDigitalPins�5V-tolerantI/Os,IncludingFourHigh-currentDriveI/Olines,Upto16mAEach�PowerSupplies–Embedded1.8VRegulator,Drawingupto100mAfortheCoreandExternalComponents–3.3VVDDIOI/OLinesPowerSupply,Independent3.3VVDDFLASHFlashPowerSupply–1.8VVDDCORECorePowerSupplywithBrownoutDetector�FullyStaticOperation:Upto55MHzat1.65Vand85°CWorstCaseConditions�Availablein100-leadLQFPGreenand100-ballTFBGAGreenPackages36120H–ATARM–17-Feb-08AT91SAM7X512/256/128Preliminary1.DescriptionAtmel'sAT91SAM7X512/256/128isamemberofaseriesofhighlyintegratedFlashmicrocon-trollersbasedonthe32-bitARMRISCprocessor.Itfeatures512/256/128Kbytehigh-speedFlashand128/64/32KbyteSRAM,alargesetofperipherals,includingan802.3EthernetMACandaCANcontroller.Acompletesetofsystemfunctionsminimizesthenumberofexternalcomponents.TheembeddedFlashmemorycanbeprogrammedin-systemviatheJTAG-ICEinterfaceorviaaparallelinterfaceonaproductionprogrammerpriortomounting.Built-inlockbitsandasecu-ritybitprotectthefirmwarefromaccidentaloverwriteandpreserveitsconfidentiality.TheAT91SAM7X512/256/128systemcontrollerincludesaresetcontrollercapableo