解密

下面是关于c81f7芯片的主要性能特征介绍，我们提供给广大客户及其他各类技术工程师参考借鉴。

systemclocks

c81f7high-speed81μccore

-upto25mipsthroughputwith25mhzsystemclock

-8kbflash;in-applicationprogrammablein512-bytesectors

(‘f7and‘f

-512bytesdataram

-externalparalleldatamemoryinterface

-bitanalogtodigitalconverter(‘f7and‘f

-upto500ksps

-16externalinputs

-on-chipvoltagereference(mayusevddorexternalvoltage)

-built-intemperaturesensor

-externalconversionstartinputoption

comparator

-programmablehysteresisandresponsetime

-configurableasinterruptorresetsource

capacitivetouchsense

-16-bitcapacitance-to-digitalconverter

-superiornoiseimmunityandfast40usaquisitiontime

-upto32externalinputs

-auto-scanandcompare

-auto-accumulate4x,8x,and16xsamples

digitalperipherals

upto54porti/owithhighsinkcurrent

-flexibleconfigurationusingdigitalcrossbar

-manycanbeconfiguredforanalogordigitalfunction

-everypincanbeoptimizedforitsbestuse

serialcommunications

-hwenhanceduart

-smbustm(i2ccompatible)

-enhancedspitm

userprogrammabletimingfunctions

-fourgeneralpurpose16-bitcounter/timers

-16-bitprogrammablecounterarray(pca)withthreecapture/compare

modulesandenhancedpwmcapability

-real-timeclockmodeusingenhancedtimerandcrystal

clocksources

-calibratedinternalprogrammableoscillator

•calibratedto2%accuracyovertempandvdd

•25mhztoallowmaxspeedcpuoperation

•supportscrystal-lessuartoperation

-externaloscillator:crystal,rc,c,orclock

-canswitchbetweenclocksourceson-the-fly

supplyvoltage:8to3v

-built-involtagesupplymonitor

temperaturerange:–40to+85°c

tqfp-64package

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