超低功耗射頻應用方案

TICC430超低功耗MCU射頻應用方案TI企業(yè)旳CC430系列是集成了RF收發(fā)器旳超低功耗MCU系統(tǒng)級芯片(SoC),器件具有功能強大旳MSP430?16位RISCCPU,16位居寄存器,以及常數(shù)發(fā)生器,以得到最高旳代碼效率.工作電壓1.8V-3.6V,CPU工作時旳功耗160μA/MHz,重要用在建筑物自動化,測試測量和財產(chǎn)跟蹤.本文簡介CC430重要特性,CC430F613x和CC430F513x旳功能方框圖,不不小于1GHz無線電方框圖,以及CC430F61xx和CC430F51xx旳經(jīng)典應用電路圖與材料清單.

TheTexasInstrumentsCC430familyofultralow-powermicrocontrollersystem-on-chipwithintegratedRFtransceivercoresconsistsofseveraldevicesfeaturingdifferentsetsofperipheralstargetedforawiderangeofapplications.Thearchitecture,combinedwithfivelow-powermodesisoptimizedtoachieveextendedbatterylifeinportablemeasurementapplications.ThedevicefeaturesthepowerfulMSP430?16-bitRISCCPU,16-bitregisters,andconstantgeneratorsthatcontributetomaximumcodeefficiency.

TheCC430familyprovidesatightintegrationbetweenthemicrocontrollercore,itsperipherals,software,andtheRFtransceiver,makingthesetruesystem-on-chipsolutionseasytouseaswellasimprovingperformance.

CC430重要特性:

TrueSystem-on-Chip(SoC)forLow-PowerWirelessCommunicationApplications

WideSupplyVoltageRange:1.8Vto3.6V

UltralowPowerConsumption:

CPUActiveMode(AM):160μA/MHz

StandbyMode(LPM3RTCMode):2.0μA

OffMode(LPM4RAMRetention):1.0μA

RadioinRX:15mA,250

kbps,915

MHz

MSP430SystemandPeripherals

16-BitRISCArchitecture,ExtendedMemory,50-nsInstructionCycleTime

Wake-UpFromStandbyModeinLessThan

6μs

FlexiblePowerManagementSystemwithSVSandBrownout

UnifiedClockSystemwithFLL

16-BitTimerTA0,Timer_AwithFiveCapture/CompareRegisters

16-BitTimerTA1,Timer_AwithThreeCapture/CompareRegisters

HardwareReal-TimeClock

TwoUniversalSerialCommunicationInterfaces

USCI_A0supportingUART,IrDA,SPI

USCI_B0supportingI2C,SPI

12-BitA/DConverterWithInternalReference,Sample-and-Hold,andAutoscanFeatures(OnlyCC430F613xandCC430F513x)Comparator

TheCC430hasoneactivemodeandfivesoftwareselectablelow-powermodesofoperation.Aninterrupteventcanwakeupthedevicefromanyofthelow-powermodes,servicetherequest,andrestorebacktothelow-powermodeonreturnfromtheinterruptprogram.

Thefollowingsixoperatingmodescanbeconfiguredbysoftware:

?Activemode(AM)

–Allclocksareactive

?Low-powermode0(LPM0)

–CPUisdisabled

–ACLKandSMCLKremainactive,MCLKisdisabled

–FLLloopcontrolremainsactive

?Low-powermode1(LPM1)

–CPUisdisabled

–FLLloopcontrolisdisabled

–ACLKandSMCLKremainactive,MCLKisdisabled

?Low-powermode2(LPM2)

–CPUisdisabled

–MCLKandFLLloopcontrolandDCOCLKaredisabled

–DCO’sdc-generatorremainsenabled

–ACLKremainsactive

?Low-powermode3(LPM3)

–CPUisdisabled

–MCLK,FLLloopcontrol,andDCOCLKaredisabled

–DCO’sdc-generatorisdisabled

–ACLKremainsactive

?Low-powermode4(LPM4)

–CPUisdisabled

–ACLKisdisabled

–MCLK,FLLloopcontrol,andDCOCLKaredisabled

–DCO’sdc-generatorisdisabled

–Crystaloscillatorisstopped

–Completedataretention

圖1.CC430F613x功能方框圖AO-Electronics傲壹電子官網(wǎng)：.com中文網(wǎng)：.cnALPSADIIRJRC/NJRKECOTAXSeoulSemic