FeaturesOperatingvoltage:fSYS=32768Hz:2.2V~5.5VfSYS=4MHz:2.2V~5.5VfSYS=8MHz:3.0V~5.5VfSYS=12MHz:4.5V~5.5VOTPProgramMemory:4K15RAMDataMemory:160827bidirectionalI/OlinesThreeexternalinterruptinputsharedwithI/OlinesTwo8-bitprogrammableTimer/EventCounterwithoverflowinterruptand7-stageprescalerExternalC/RtoFconverter16-ChannelCapacitor/ResistorsensorinputsIntegratedCrystal,IRC,ERCandRTCoscillatorFullyintegratedinternalRCoscillator***ailablewiththreefrequencies:4MHz,8MHzor12MHzWatchdogTimerfunctionLIRCorRTCoscillatorfunctionforwatchdogtimerPFDandBuzzerforaudiofrequencygenerationDualSerialInterfaces:SPIandI2C4operatingmodes:normal,slow,idleandsleep6-levelsubroutinenesting6-channel12-bitresolutionA/Dconverter2-channel12-bitPWMoutputsharedwithI/OlineLowvoltageresetfunction-2.1V,3.15V,4.2VLowvoltagedetectfunction-2.2V,3.3V,4.4VBitmanipulationinstruction15-Bittablereadinstructi***63powerfulinstructi***Upto0.33sinstructioncyclewith12MHzsystemclockatVDD=5VAllinstructi***executedinoneortwomachinecyclesIdle/Sleepmodeandwake-upfuncti***toreducepowerc***umptionTime-BaseandRTCinterrupt20-pinDIP/SOP,24/28-pinSKDIP/SOP/SSOPand32-pinQFNpackages)