AT91SAM7X256中文版

://@TEL[phone]E-mail:[e-mail]•ARM7TDMI®ARM®Thumb®–32RISC–16–MIPS/Watt(/)–ICE•Flash–256K(AT91SAM7X256)1024256–128K(AT91SAM7X128)512256–30MHz–Thumb–6ms,,15ms–10,000,10,Flash–Flash•SRAM,–64K(AT91SAM7X256)–32K(AT91SAM7X128)•(MC)–Flash,•(RSTC)––•(CKGR)–RC,320MHzPLL•(PMC)–,(500Hz)–•(AIC)––,•(DBGU)–UARTICE•(PIT)–2012•(WDT)–12––•(RTT)–32–RC•/(PIO)–62I/OI/O–I/O–AT91ARM®Thumb®-basedMicrocontrollersAT91SAM7X256AT91SAM7X128SummaryPreliminary•13DMA(PDC)•USB2.0(12Mbits)–,1352FIFO•10/100base-TMbps–(MII)(RMII)–28FIFODMA•CAN2.0ACAN2.0BCAN–8,16•(SSC)––I²S,–32•/(USART)–,IrDA/–ISO7816T0/T1,RS485–USART1Modem•/(SPI)–816,•316/(TC)–,I/O–PWM,/,/•416PWM(PWMC)•(TWI)–,AtmelEEPROM•810I/O•SAM-BA™Boot–Boot–SAM-BA•IEEE1149.1JTAG•5V/I/O16mA•–1.8V,100mA–3.3VVDDIOI/O3.3VVDDFLASHFlash–1.8VVDDCORE•:1.65V85°C55MHz•100LQFP2://://://()USBDDMUSB-DDPUSB+USARTSCK0-SCK1I/OTXD0-TXD1I/ORXD0-RXD1RTS0-RTS1CTS0-CTS1DCD1DTR1DSR1RI1TDRDTKI/ORKI/OTFI/ORFI/O/TCLK0-TCLK2TIOA0-TIOA2I/OAI/OTIOB0-TIOB2I/OBI/OPWMPWM0-PWM3PWM–SPIxSPIx_MISOI/OSPIx_MOSII/OSPIx_SPCKSPII/OSPIx_NPCS0SPI0I/OSPIx_NPCS1-NPCS3SPI13TWDI/OTWCKI/O6()AD0-AD3AD4-AD7ADTRGADCADVREFADCFlashPGMEN0-PGMEN1PGMM0-PGMM3PGMD0-PGMD15I/OPGMRDYPGMNVALIDPGMNOEPGMCKPGMNCMDCANCANRXCANCANTXCANEthernetMAC10/100EREFCKRMIIETXCKMIIERXCKMIIETXENETX0-ETX3ETX0-ETX1RMIIETXERMIIonlyERXDVMIIonlyECRSDVRMIIERX0-ERX3ERX0-ERX1RMIIERXERECRSMIIECOLMIIEMDCEMDIO/I/OEF100100Mbits/RMII7()75517650100261255.2AT91SAM7X256/128Table5-1.100LQFP1ADVREF2GND3AD44AD55AD66AD77VDDOUT8VDDIN9PB27/AD010PB28/AD111PB29/AD212PB30/AD313PA8/PGMM014PA9/PGMM115VDDCORE16GND17VDDIO18PA10/PGMM219PA11/PGMM320PA12/PGMD021PA13/PGMD122PA14/PGMD223PA15/PGMD324PA16/PGMD425PA17/PGMD58•VDDINADC3.0V3.6V3.3VADCVDDINADVREFAD5AD6AD7GNDVDDOUT•VDDOUT1.8V•VDDIOI/O3.0V3.6V3.3V•VDDFLASHUSBFlashFlash3.0V3.6V3.3V•VDDCORE1.65V1.95V1.8VVDDOUTVDDCORE•VDDPLLPLLVDDOUTGND6.225°CAT91SAM7X256/128VDDCORE60µARC28µAFlashVDDCORE90mAVDDFLASH10mA6.3AT91SAM7X256/128100µA100mA25µA1mAVDDOUT470pF(1nF)NPOVDDOUTGND2.2µF(3.3µF)X7RVDDOUTGND9µFX7R6.4AT91SAM7X256/1283.3V3.3VVDDCOREVDDPLLFigure6-1USBFigure6-1.3.3VVDDFLASHPowerSourcerangesDfrom4.5V(USB)to18VVDDOUTVoltageRegulatorVDDCOREVDDPLL10Ω7.2TSTAT91SAM7X256/128TST15kΩTSTPA0PA1PA2PA0PA1TST7.3NRSTNRSTNRSTNRSTVDDIO7.4ERAS