STC15W4K32S4 series MCU d. Data Sheet - stcmcudata.com · STC15W4K32S4 series MCU Manual Temporary Technical Adviser : ... 1.9.1 Test Porgram that Switch CCP/PWM/PCA ... 2.2.8 Warm

STC15W4K32S4 series MCU Data Sheet

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UpdateDate:2015/2/6

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CONTENTSChapter1GeneralOverviewofSTC15W4K32S4series..............12

1.1IntroductionofSTC15W4K32S4seriesMCU................................. 121.2BlockdiagramofSTC15W4K32S4seriesMCU............................. 151.3PinConfigurationsofSTC15W4K32S4seriesMCU...................... 161.4STC15W4K32S4seriesSelectionandPriceTable........................... 211.5NamingrulesofSTC15W4K32S4seriesMCU............................... 221.6ApplicationCircuitDiagramforISPofSTC15W4Kseries.............. 23

1.6.1ApplicationCircuitDiagramforISPusingRS-232Converter................... 231.6.2ApplicationCircuitDiagramforISPusingUSBtoconvertSerialPort..... 241.6.3ApplicationCircuitDiagramforISPdirectlyusingUSBport.................... 25

P3.0/P3.1ofSTC15W4KseriesandIAP15W4K58S4connectdirectlywithD-/D+ofUSB......25

1.7PinDescriptionsofSTC15W4K32S4seriesMCU.......................... 261.8PackageDimensionDrawingsofSTC15seriesMCU..................... 33

1.8.1DimensionDrawingsofDFN8..................................................................... 331.8.2DimensionDrawingsofSOP8..................................................................... 341.8.3DimensionDrawingsofDIP8...................................................................... 351.8.4DimensionDrawingsofSOP16................................................................... 361.8.5DimensionDrawingsofDIP16.................................................................... 371.8.6DimensionDrawingsofSOP20................................................................... 381.8.7DimensionDrawingsofTSSOP20............................................................... 391.8.8DimensionDrawingsofLSSOP20............................................................... 401.8.9DimensionDrawingsofDIP20.................................................................... 411.8.10DimensionDrawingsofSOP28................................................................. 421.8.11DimensionDrawingsofTSSOP28............................................................. 431.8.12DimensionDrawingsofSKDIP28............................................................. 441.8.13DimensionDrawingsofQFN28................................................................. 451.8.14DimensionDrawingsofLQFP32............................................................... 461.8.15DimensionDrawingsofSOP32................................................................. 471.8.16DimensionDrawingsofQFN32................................................................. 481.8.17DimensionDrawingsofPDIP40................................................................ 491.8.18DimensionDrawingsofLQFP44............................................................... 501.8.19DimensionDrawingsofPLCC44............................................................... 51

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1.8.20DimensionDrawingsofPQFP44............................................................... 521.8.21DimensionDrawingsofLQFP48............................................................... 531.8.22DimensionDrawingsofQFN48................................................................. 541.8.23DimensionDrawingsofLQFP64S............................................................. 551.8.24DimensionDrawingsofLQFP64L............................................................. 561.8.25DimensionDrawingsofQFN64................................................................. 57

1.9SpecialPeripheralFunction(CCP/SPI,UART1/2/3/4)Switch........... 581.9.1TestPorgramthatSwitchCCP/PWM/PCA(CandASM).......................... 601.9.2TestPorgramthatSwitchPWM2/3/4/5/PWMFLT(CandASM)............... 621.9.3TestPorgramthatSwitchPWM6/PWM7(CandASM).............................. 641.9.4TestPorgramthatSwitchSPI(CandASM)............................................... 661.9.5TestPorgramthatSwitchUART1(CandASM)........................................ 681.9.6TestPorgramthatSwitchUART2(CandASM)........................................ 701.9.7TestPorgramthatSwitchUART3(CandASM)........................................ 721.9.8TestPorgramthatSwitchUART4(CandASM)........................................ 74

1.10GlobalUniqueIdentificationNumber(ID).................................... 76Chapter2Clock,ResetandPowerManagement...........................81

2.1Clock................................................................................................. 812.1.1On-ChipConfigurableClock...................................................................... 812.1.2DividerforSystemClock............................................................................ 822.1.3ProgrammableClockOutput(orasFrequencyDivider)............................ 83

2.1.3.1SpecialFunctionRegistersRelatedtoProgrammableClockOutput..................832.1.3.2MasterClockOutputandDemoProgram(CandASM)......................................882.1.3.3Timer0ProgrammableClockOutputandDemoProgram(CandASM)............912.1.3.4Timer1ProgrammableClockOutputandDemoProgram(CandASM)............952.1.3.5Timer2ProgrammableClockOutputandDemoProgram(CandASM)...........992.1.3.6Timer3ProgrammableClockOutputandDemoProgram(CandASM).........1032.1.3.7Timer4ProgrammableClockOutputandDemoProgram(CandASM).........104

2.2RESETSources............................................................................... 1052.2.1ExternalRSTpinReset............................................................................. 1052.2.2SoftwareResetandDemoProgram(CandASM).................................... 1062.2.3Power-Off/Power-OnReset(POR)......................................................... 1092.2.4MAX810SpeicalCircuitReset(Power-Off/Power-OnResetDelay)..... 1092.2.5InternalLowVoltageDetectionReset....................................................... 1102.2.6Watch-Dog-TimerReset............................................................................ 1132.2.7ResetCausedbyProgramAccessinganInvalidAddress......................... 1172.2.8WarmBootandColdBootReset.............................................................. 118

2.3PowerManagementModes..............................................................1192.3.1SlowDownModeandDemoProgram(CandASM)............................... 1202.3.2IdleModeandDemoProgram(CandASM)............................................ 1232.2.3Stop/PowerDown(PD)ModeandDemoProgram(CandASM).......... 125

2.3.3.1DemoProgramUsingPower-DownWake-UpTimertoWakeUpStop/PDMode....1272.3.3.2DemoProgramUsingExternalInterruptINT0toWakeUpStop/PDMode.....1292.3.3.3DemoProgramUsingExternalInterruptINT1toWakeUpStop/PDMode.....1312.3.3.4DemoProgramUsingExternalInterruptINT2toWakeUpStop/PDMode.....1332.3.3.5DemoProgramUsingExternalInterruptINT3toWakeUpStop/PDMode.....1352.3.3.6DemoProgramUsingExternalInterruptINT4toWakeUpStop/PDMode.....1372.3.3.7ProgramUsingExternalInterruptExtendedbyCCP/PCAtoWakeUpPDMode..1392.3.3.8ProgramUsingtheLevelChangeofRxDpintoWakeUpStop/PDMode.......1432.3.3.9ProgramUsingtheLevelChangeofRxD2pintoWakeUpStop/PDMode.....147

Chapter3MemoryOrganizationandSFRs.................................1513.1ProgramMemory............................................................................ 1513.2DataMemory(SRAM)................................................................... 152

3.2.1On-chipScratch-PadRAM....................................................................... 1523.2.2On-ChipExpandedRAM/XRAM/AUX-RAM...................................... 1543.2.3ExternalExpandable64KBRAM(Off-ChipRAM)................................. 160

3.3SpecialFunctionRegisters.............................................................. 1633.3.1SpecialFunctionRegistersAddressMap.................................................. 1633.3.2SpecialFunctionRegistersBitsDescription............................................. 1643.3.3DualDataPointerRegister(DPTR).......................................................... 170

Chapter4ConfigurableI/OPortsofSTC15seriesMCU...........1714.1I/OPortsConfigurations................................................................. 1714.2SpecialExplanationofP1.7/XTAL1andP1.6/XTAL2pin............ 1744.3SpecialExplanationofRSTpin...................................................... 1744.4SpecialExplanationofRSTOUT_LOWpin.................................. 1744.5SFRsrelatedtoI/OportsandItsAddressStatement...................... 1754.6DemoProgramofSTC15seriesP0/P1/P2/P3/P4/P5..................... 1794.7I/OportsModes.............................................................................. 185

4.7.1Quasi-BidirectionalI/O............................................................................. 1854.7.2Push-PullOutput....................................................................................... 1854.7.3Input-Only(High-Impedance)Mode......................................................... 1864.7.4Open-DrainOutput.................................................................................... 186

4.8I/OPortApplicationNotes.............................................................. 1864.9TypicalTransistorControlCircuit.................................................. 1874.10TypicalDiodeControlCircuit....................................................... 1874.11HowtoMakeI/OPortLowafterMCUReset.............................. 1874.12KeyboardScanningCircuitusingI/Oports.................................. 1884.13PinFunctionandLogicTurthTableof74HC595......................... 1894.14CircuitExpandingI/Oportsusing74HC595................................ 1904.15CircuitDriving8-segmentDigitronusing74HC595.................... 1914.16DemoProgramofDriving8-SegmentDigitron........................... 192UsingcommonI/OportstoControl74HC595.................... 1924.17ApplicationCircuitusingA/DConversiontoScanKey............. 1994.18DemoProgramusingI/OportstoSimulateI2CInterface............ 200

4.18.1MasterModeusingI/OportstoSimulateI2CInterfacebySoftware..... 2004.18.2SlaveModeusingI/OportstoSimulateI2CInterfacebySoftware........ 203

Chapter5.InstructionSystem......................................................2065.1AddressingModes........................................................................... 206

5.1.1ImmediateAddressing............................................................................... 2065.1.2DirectAddressing...................................................................................... 2065.1.3IndirectAddressing.................................................................................... 2065.1.4RegisterAddressing................................................................................... 2075.1.5InherentAddressing................................................................................... 2075.1.6IndexAddressing....................................................................................... 2075.1.7BitAddressing........................................................................................... 207

5.2InstructionSetSummary................................................................. 2085.3InstructionDefinitionsofTraditional8051MCU.......................... 214

Chapter6InterruptSystem..........................................................2516.1InterruptStructure........................................................................... 2526.2InterruptVectorAddress/Priority/RequestFlagTable.................... 2556.3HowtoDeclareInterruptFunctioninKeilC................................. 2566.4InterruptRegisters........................................................................... 2576.5InterruptPriorities........................................................................... 2666.6InterruptHandling........................................................................... 2686.7InterruptNesting............................................................................. 270

6.8ExternalInterrupts......................................................................... 2706.9InterruptDemoProgram(CandASM).......................................... 271

6.9.1ExternalInterrupt0(INT0)DemoProgram.............................................. 2716.9.1.1ExternalInteruptINT0(rising+fallingedge)DemoProgram(CandASM)...2716.9.1.2ExternalInterruptINT0(fallingedge)DemoProgram(CandASM)...............273

6.9.2ExternalInterrupt1(INT1)DemoProgram............................................... 2756.9.2.1ExternalInterruptINT1(rising+fallingedge)DemoProgram(CandASM)..2756.9.2.2ExternalInterruptINT1(fallingedge)DemoProgram(CandASM)...............277

6.9.3ExternalInterrupt2(INT2)(falling)DemoProgram(CandASM)......... 2796.9.4ExternalInterrupt3(INT3)(falling)DemoProgram(CandASM)......... 2816.9.5ExternalInterrupt4(INT4)(falling)DemoProgram(CandASM)......... 2836.9.6DemoProgramusingT0toexpandExternalInterrupt(Falling).............. 285T0asCounter(CandASM)............................................................. 2856.9.7DemoProgramusingT1toexpandExternalInterrupt(Falling).............. 287T1asCounter(CandASM)............................................................. 2876.9.8DemoProgramusingT2toexpandExternalInterrupt(Falling).............. 289T2asCounter(CandASM)............................................................. 2896.9.9DemoProgramusingCCP/PCAtoexpandExternalInterrupt................. 292

Chapter7Timer/Counter.............................................................2967.1SpecialFunctionRegistersaboutTimer/Counter........................... 2977.2Timer/Counter0Modes.................................................................. 305

7.2.1Mode0(16-BitAuto-RelaodTimer/Counter)andDemoProgram.......... 3057.2.1.1DemoProgramof16-bitAuto-ReloadTimer/Counter0(CandASM).............3067.2.1.2DemoProgramofT0ProgrammableClockOutput(CandASM)....................309T0as16-bitAuto-ReloadTimer/Counter....................3097.2.1.3DemoProgramusing16-bitauto-reloadTimer0toSimulate10or16bitsPWM..3127.2.1.4DemoProgramusingT0toexpandExternalInterrupt(Fallingedge)...............315T0as16-bitAuto-RelaodCounter(CandASM)...............315

7.2.2Mode1(16-bitTimer/Counter)andDemoProgram(CandASM).......... 3177.2.3Mode2(8-bitAuto-ReloadTimer/Counter)andDemoProgram............. 3217.2.4Mode3(16-bitAuto-RelaodTimer/CouterwhoseInterruptcannotbedisabled)324

7.3Timer/Counter1Modes.................................................................. 3257.3.1Mode0(16-BitAuto-RelaodTimer/Counter)andDemoProgram.......... 325

7.3.1.1DemoProgramof16-bitAuto-ReloadTimer/Counter1(CandASM).............3267.3.1.2DemoProgramofT1ProgrammableClockOutput(CandASM)....................329T1as16-bitAuto-ReloadTimer/Counter.....................3297.3.1.3DemoProgramusing16-bitauto-reloadTimer1asUART1baud-rateGenerator..332

7.3.1.4DemoProgramusingT1toexpandExternalInterrupt(Fallingedge)...............338T1as16-bitAuto-RelaodCounter(CandASM)...............338

7.3.2Mode1(16-bitTimer/Counter)andDemoPrograms(CandASM)........ 3407.3.3Mode2(8-bitAuto-ReloadTimer/Counter)andDemoProgram............. 344

7.3.3.1DemoProgramusing8-bitauto-reloadTimer1asUART1baud-rateGenerator....3457.3.3.2DemoProgramusingT1toexpandExternalInterrupt(Fallingedge)...............350T1as8-bitAuto-RelaodCounter(CandASM)...............350

7.4Timer/Counter2.............................................................................. 3527.4.1SpecialFunctionRegistersaboutTimer/Counter2................................... 3527.4.2Timer/Counter2as16-BitAuto-ReloadTimer/Counter........................... 355

7.5.2.1DemoProgramof16-bitAuto-ReloadTimer/Counter2(CandASM).............3567.5.2.2DemoProgramusingT2toexpandExternalInterrupt(Fallingedge)...............359T2as16-bitAuto-RelaodCounter(CandASM)...............359

7.4.3Timer/Counter2ProgrammableClockOutputandDemoProgram......... 3627.4.4Timer/Counter2asBaud-RateGeneratorofSerialPort(UART)............ 366

7.5.4.1DemoProgramusingTimer/Counter2asUART1Baud-RateGenerator.........3677.5.4.2DemoProgramusingTimer/Counter2asUART2Baud-RateGenerator.........373

7.5Timer/Counter3andTimer/Counter4............................................ 3797.5.1SpecialFunctionRegistersaboutTimer/Counter3and4......................... 3797.5.2Timer/Counter3........................................................................................ 381

7.5.2.1Timer/Counter3as16-BitAuto-ReloadTimer/Counter....................................3817.5.2.2Timer/Counter3ProgrammableClockOutput..................................................3827.5.2.3Timer/Counter3asBaud-RateGeneratorofSerialPort3(UART3)................383

7.5.3Timer/Counter4........................................................................................ 3847.5.3.1Timer/Counter4as16-BitAuto-ReloadTimer/Counter....................................3847.5.3.2Timer/Counter4ProgrammableClockOutput..................................................3857.5.3.3Timer/Counter4asBaud-RateGeneratorofSerialPort4(UART4)................386

7.6HowtoIncreaseT0/T1/T2/T3/T4Speedby12times.................... 3877.7ProgrammableClockOutput(orasFrequencyDivider)................ 389

7.7.1SpecialFunctionRegistersRelatedtoProgrammableClockOutput........ 3897.7.2MasterClockOutputandDemoProgram(CandASM)........................... 3947.7.3Timer0ProgrammableClockOutputandDemoProgram....................... 3977.7.4Timer1ProgrammableClockOutputandDemoProgram....................... 4017.7.5Timer2ProgrammableClockOutputandDemoProgram....................... 4057.7.6Timer3ProgrammableClockOutputandDemoProgram....................... 4097.7.7Timer4ProgrammableClockOutputandDemoProgram....................... 410

7.8Power-DownWake-UpSpecialTimerandDemoProgram............4117.9ApplicationNotesforTimerinpractice.......................................... 416

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Chapter8SerialPort(UART)Communication..........................4178.1SpecialFunctionRegistersaboutSerialPort1(UART1).............. 4188.2UART1OperationModes.............................................................. 423

8.2.1Mode0:8-BitShiftRegister.................................................................... 4238.2.2Mode1:8-BitUARTwithVariableBaudRate......................................... 4258.2.3Mode2:9-BitUARTwithFixedBaudRate............................................. 4288.2.4Mode3:9-BitUARTwithVariableBaudRate......................................... 430

8.3BuadRatesSettingofUART1andDemoProgram........................ 4328.4DemoProgramofUART1(CandASM)....................................... 434

8.4.1DemoProgramusingT2asUART1Baud-RateGenerator(C&ASM).... 4348.4.2DemoProgramusingT1asUART1Baud-RateGenerator(C&ASM)..... 440T1inMode0(16-bitAuto-ReloadTimer/Counter)... 4408.4.3DemoProgramusingT1asUART1Baud-RateGenerator(C&ASM)..... 446T1inMode2(8-bitAuto-ReloadTimer/Counter)..... 446

8.5FrameErrorDetection.................................................................... 4528.6MultiprocessorCommunications.................................................... 4528.7AutomaticAddressRecognitionofUART1................................... 453

8.7.1SpecialFucntionRegistersaboutAutomaticAddressRecognition.......... 4538.7.2InstructionofAutomaticAddressRecognition......................................... 4558.7.3DemoProgramofAutomaticAddressRecognition(CandASM)........... 458

8.8SpecialFunctionRegistersaboutSerialPort2(UART2).............. 4648.9UART2OperationModes............................................................... 467

8.9.1Mode0:8-bitUART2withVariableBaud-Rate..................................... 4678.9.2Mode3:9-bitUART2withVariableBaud-Rate....................................... 467

8.10DemoProgramofUART2(CandASM)..................................... 468-----UsingTimer2asUART2Baud-RateGenerator................... 4688.11SpecialFunctionRegistersaboutSerialPort3(UART3)............. 4748.12UART3OperationModes............................................................. 478

8.12.1Mode0:8-bitUART3withVariableBaud-Rate................................... 4788.12.2Mode3:9-bitUART3withVariableBaud-Rate..................................... 479

8.13SpecialFunctionRegistersaboutSerialPort4(UART4)............ 4808.14UART4OperationModes............................................................. 484

8.14.1Mode0:8-bitUART4withVariableBaud-Rate................................... 4848.14.2Mode3:9-bitUART4withVariableBaud-Rate..................................... 485

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Chapter9IAP/EEPROMFunctionofSTC15Series..................4869.1IAP/EEPROMSpecialFunctionRegisters................................... 4879.2STC15W4K32S4SeriesInternalEEPROMAllocationTable....... 4919.3IAP/EEPROMAssemblyProgramIntroduction............................ 4949.4EEPROMDemoProgram(CandASM)........................................ 497

9.4.1EEPROMDemoProgram(notTransmitdatabyUART)......................... 4979.4.2EEPROMDemoProgram(TransmitdatabyUART)(CandASM)........ 505

Chapter10AnalogtoDigitalConverter......................................51510.1A/DConverterStructure............................................................... 51510.2RegistersforADC......................................................................... 51710.3ADCTypicalApplicationCircuit.................................................. 52010.4ApplicationCircuitusingA/DConversiontoScanKey............. 52110.5ADCReferenceVoltageSource.................................................... 52210.6ADCDemoProgram(CandASM)............................................. 523

10.6.1DemoProgram(DemonstrateinADCInterruptMode).......................... 52310.6.2DemoProgram(DemonstrateinPollingMode).................................... 529

10.7CircuitDiagramusingSPItoExtend12-bitADC(TLC2543)....... 537Chapter11ApplicationofCCP/PCA/PWM/DAC......................538

11.1SpecialFunctionRegistersrelatedwithCCP/PCA/PWM............ 53811.2CCP/PCA/PWMStructure............................................................ 54411.3CCP/PCAModulesOperationMode............................................ 546

11.3.1CCP/PCACaptureMode......................................................................... 54711.3.216-bitSoftwareTimerMode................................................................... 54711.3.3HighSpeedOutputMode........................................................................ 54811.3.4PulseWidthModulatorMode(PWMmode).......................................... 549

11.3.4.18-bitPulseWidthModulator(PWMmode).....................................................54911.3.4.27-bitPulseWidthModulator(PWMmode).....................................................55011.3.4.36-bitPulseWidthModulator(PWMmode).....................................................552

11.4ProgramusingCCP/PCAtoExtendExternalInterrupt................ 55311.5DemoProgramforCCP/PCAactedas16-bitTimer.................... 55711.6DemoProgramusingCCP/PCAtooutputHighSpeedPulse....... 56211.7DemoProgramforCCP/PCAOutputingPWM(6+7+8bit)........ 56711.8Programachieving9~16bitPWMOutputbyCCP/PCA............. 571

11.9DemoProgramofCCP/PCA16-bitCaptureMode...................... 57511.10DemoProgramusingT0toSimulate10or16bitsPWM.......... 581T0as16-bitAuto-ReloadTimer/Counter.......... 58111.11CircuitDiagramusingCCP/PCAtoachieve8~16bitDAC...... 584

Chapter12New6ChannelsofPWMofSTC15W4Kseries......585High-PrecisionPWMwithDeathTimeControl.......585

12.1SpecialFunctionRegistersofNewPWMGenerators................... 58612.2InterruptsofNewEnhancedPWMGenerators............................. 594

Chapter13ComparatorofSTC15WseriesMCU.......................60513.1ComparatorDemoProgramusingInterrupt(CandASM)............. 60813.2ComparatorDemoProgramusingPolling(CandASM)............... 612

Chapter14CapacitiveSensingTouchKey..................................616AchievedbyADCofSTC15Wseries.............616Chapter15SysnchronousSerialPeripheralInterface.................637

15.1SpecialFunctionRegistersrelatedwithSPI................................. 63715.2SPIStructure................................................................................. 64015.3SPIDataCommunication............................................................. 641

15.3.1SPIDataCommunicationModes............................................................ 64215.3.2SPIConfiguration.................................................................................... 64415.3.3AdditionalConsiderationsforaSlave.................................................... 64515.3.4AdditionalConsiderationsforaMaster.................................................. 64515.3.5ModeChangeonSS-pin....................................................................... 64515.3.6WriteCollision........................................................................................ 64615.3.7SPIClockRateSelect............................................................................. 64615.3.8SPIDataMode........................................................................................ 647

15.4SPIFunctionDemoProgram(SingleMasterSingleSlave)....... 64915.4.1SPIFunctionDemoProgramusingInterrupt(CandASM).................... 64915.4.2SPIFunctionDemoProgramsusingPollingmode(CandASM).......... 655

15.5SPIFunctionDemoProgram(EachotherasMaster-Slave).......... 66115.5.1SPIFunctionDemoProgramsusingInterrupts(CandASM)................ 66115.5.2SPIFunctionDemoProgramsusingPolling........................................... 667

15.6SPIDemo(SingleMasterMultipleSlave).................................. 673

Chapter16Compiler/ISPProgrammer/Emulator....................68316.1Compiler/AssemblerandHeadFile.............................................. 68316.2USBDownloadToolOn-Line/Off-LineU8/U8-Mini........ 691

16.2.1IntroducetheMainModulesofU8(RMB100yuan).............................. 69316.2.2InstalltheDriverofU8Tool.................................................................... 694

16.3ISPProgrammer/Burner.............................................................. 69616.3.1In-System-Programming(ISP)principle................................................. 69616.3.2ApplicationCircuitDiagramforISPofSTC15W4K32S4series............ 697

16.3.2.1ApplicationCircuitDiagramforISPusingRS-232Converter........................69716.3.2.2ApplicationCircuitDiagramforISPusingUSBtoconvertSerialPort..........69916.3.2.3ApplicationCircuitDiagramforISPdirectlyusingUSBport.........................700P3.0/P3.1ofSTC15W4KseriesandIAP15W4K58S4connectdirectlywithD-/D+ofUSB....700

16.3.3PackageRealDiagramofSTCMCU..................................................... 70116.3.4HowtoUtilizeTransitionSockettoinstallSMD................................... 70416.3.5PCSideControlSoftwareUsage............................................................ 70916.3.6HowtoReleaseProject........................................................................... 71816.3.7HowtoEncryptUserCodebySoftwareSTC15-ISP-Ver6.82................ 72216.3.8Self-DefinedDownloadandDemoProgram.......................................... 723

16.4EmulatorofSTC15seriesMCU................................................... 726Chapter17HowtoProgramSlaveChipbyMasterChip............731theSlaveChipisonlyforSTC15seriesMCU.........731AppendixA:AssemblyLanguageProgramming........................742AppendixB:8051CProgramming.............................................764AppendixC:Indirectaddressinginner256BRAM....................774AppendixD:UsingSerialporttoExpandI/OPorts....................775AppendixE:LEDDrivenbyanI/OportandKeyScan..............777AppendixF:NotesofSTC15replacingStandard8051..............778AppendixG:InstructionSpeedBoostSummary.........................780AppendixH:HowtoreducetheCodeLengthbyKeilC............786AppendixI:CircuitDiagramofSTC15DemoBoard.................787

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Chapter 1. General Overview of STC15W4K32S4 series

1.1 Introduction of STC15W4K32S4 series MCUSTC15W4K32S4seriesMCUisasingle-chipmicrocontrollerbasedonahighperformance1Tarchitecture

8051CPU,whichisproducedbySTCMCULimited.It isanewgenerationof8051MCUwithhighspeed,highstability,widevoltagerange,lowpowerconsumptionandsuperstronganti-disturbance.Withtheenhancedkernel,STC15W4K32S4seriesMCUisfaster than the traditional8051one inexecuting instructions(about8~12timestherateofthetraditional8051MCU),andhasafullycompatibleinstructionsetwithtraditional8051seriesmicrocontroller.Externalexpensivecrystalcanberemovedbybeingintegratedinternalhigh-preciseR/Cclock(0.3%)with1%temperaturedrift(-40 ~+85 )while0.6%innormaltemperature(-20 ~+65 ).Externalresetcurcuitalsocanberemovedbybeingintegratedinternalhighlyreliableonewith16levelsoptionalthresholdvoltageofreset.TheSTC15W4K32S4seriesMCUretainsallfeaturesofthetraditional8051one.Inaddition,ithas8-channelsand10-bitsPWM,8-channelsand10-bitsA/DConverter(300thousandtimespersec.),Comparator, largecapacityof4KbytesSRAM,fourhigh-speedasynchronousserialports----UARTs(UART1/UART2/UART3/UART4)andahigh-speedsynchronousserialperipheralinterface----SPI.

InKeilCdevelopmentenvironment,pleasechoosetheIntel8052tocompilingandonlycontainasheaderfile.

STC15familywithsuperhigh-speedCPUcoreofSTC-Y5works20%fasterthanSTCearly1Tseries(suchasSTC12/STC11/STC10series)insameclockfrequency.

Enhanced8051CentralProcessingUnit,1T,singleclockpermachinecycle,faster8~12timesthantherateofatraditional8051.

Operatingvoltagerange:5.5V~2.5V.

On-chip16K/32K/40K/48K/56K/58K/61K/63.5KFLASHprogrammemorywithflexibleISP/IAPcapability,canberepeatedlyerasedmorethan100thousandtimes.

Largecapacityofon-chip4096bytesSRAM:256bytescratch-padRAMand3840bytesofauxiliaryRAM

Becapableofaddressingupto64KbyteofexternalRAM

On-chipEEPROMwithlargecapacitycanberepeatedlyerasedmorethan100thousandtimes.

DualDataPointer(DPTR)tospeedupdatamovement

ISP/IAP,In-System-ProgrammingandIn-Application-Programming,noneedforprogrammerandemulator.

8channelsand10bitsAnalog-to-DigitalConverter(ADC),thespeedupto300thousandtimespersecond,3channelsPWMalsocanbeusedas3channelsD/AConverter(DAC).

6channels15bitshigh-precisionPWM(withadead-sectioncontroller)and2channelsCCP(Thehigh-speedpulsefunctionofwhichcanbeutilizedtorealize11~16bitsPWM)----canbeusedas8channelsD/AConverteror2Timesor2externalInterrupts(whichcanbegeneratedon

risingorfallingedge).

InternalhghlyreliableResetwith16levelsoptionalthresholdvoltageofreset,sothatexternalresetcurcuitcanbecompletelyremoved.

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Internalhigh-preciseR/Cclock(0.3%)with1%temperaturedrift(-40 ~+85 )while0.6%(-20~+65 )innormaltemperatureandwidefrenquencyadjustablebetween5MHzand35MHz(5.5296MHz/11.0592MHz/22.1184MHz/33.1776MHz).

Operatingfrequencyrange:5-35MHz,isequivalenttotraditional8051:60~420MHz.

Fourhigh-speedasynchronous serial ports----UARTs (UART1/UART2/UART3/UART4can beusedsimultaneouslyandregardedas9serialportsbyshiftingamong9groupsofpins):

UART1(RxD/P3.0,TxD/P3.1)canbeswitchedto(RxD_2/P3.6,TxD_2/P3.7), alsocanbeswitchedto(RxD_3/P1.6,TxD_3/P1.7);UART2(RxD2/P1.0,TxD2/P1.1)canbeswitchedto(RxD2_2/P4.6,TxD2_2/P4.7);UART3(RxD3/P0.0,TxD3/P0.1)canbeswitchedto(RxD3_2/P5.0,TxD3_2/P5.1)UART4(RxD4/P0.2,TxD4/P0.3)canbeswitchedto(RxD4_2/P5.2,TxD4_2/P5.3)

Ahigh-speedsynchronousserialperipheralinterface----SPI.

SupportthefunctionofEncryptionDownload(toprotectyourcodefrombeingintercepted).

SupportthefunctionofRS485Control

Codeprotectionforflashmemoryaccess,excellentnoiseimmunity,verylowpowerconsumption

Powermanagementmode:Slow-Downmode,Idlemode(all interruptcanwakeupIdlemode),Stop/Power-Downmode.

Timerswhichcanwakeupstop/power-downmode:haveinternallow-powerspecialwake-upTimer.

Resourcewhichcanwakeupstop/power-downmodeare: INT0/P3.2, INT1/P3.3 (INT0/INT1,maybegeneratedonboth risingand fallingedges),INT2/P3.6, INT3/P3.7, INT4/P3.0 ( INT2/INT3/INT4, only be generated on fallingedge); pinsCCP0/CCP1; pinsRxD/RxD2/RxD3/RxD4; pinsT0/T1/T2/T3/T4(theirfallingedgecanwakeup ifT0/T1/T2/T3/T4havebeenenabledbeforepower-downmode,butno interruptscanbegeneratetd); internallow-powerspecialwake-upTimer.

7Timers/Counters:five16-bitreloadableTimers/Counters(T0/T1/T2/T3/T4,T0andT1arecompatiblewithTimer0/Timer1oftraditional8051)and2Timerswhichmayberealizedby2channelsCCP.T0/T1/T2/T3/T4allcanindependentlyachieveexternalprogrammableclockoutput(5channels).

Programmableclockoutputfunction(outputbydividingthefrequencyof the internalsystemclockor theinputclockofexternalpin):

TheProgrammableclockoutputofT0isonP3.5/T0CLKO(outputbydividingthefrequencyoftheinternalsystemclockortheinputclockofexternalpinT0/P3.4)




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TheProgrammableclockoutputofT4isonP0.6/T4CLKO(outputbydividingthefrequencyoftheinternalsystemclockortheinputclockofexternalpinT4/P0.7)Fivetimers/countersinaboveallcanbeoutputbydividingthefrequencyfrom1to65536.

TheProgrammableclockoutputofmasterclockisonP5.4/MCLKO,anditsfrequencycanbedividedintoMCLK/1, MCLK/2, MCLK/4, MCLK/16./1, MCLK/2, MCLK/4, MCLK/16.,MCLK/2,MCLK/4,MCLK/16.

Themasterclockcaneitherbe internalR/Cclockor theexternal inputclockor theexternalcrystaloscillator.

MCLKisthefrequencyofmasterclock.MCLKOistheoutputofmasterclock.Comparator,whichcanbeusedas1channelADCorbrownoutdetectfunctionandsupportcomparingbyexternalpinCMP+andCMP-orinternalreferencevoltageandgeneratingoutputsignal(itspolaritycanbeconfigured)onCMPOpin.

One15bitsWatch-Dog-Timerwith8-bitpre-scaler(one-time-enabled)

advancedinstructionset,whichisfullycompatiblewithtraditional8051MCU,havehardwaremultiplication/divisioncommand.

62/46/42/38/30/26commonI/Oportsareavailable,theirmodeisquasi_bidirectional/weakpull-up(traditional8051I/Oportsmode)afterreset,andcanbesettofourmodes:quasi_bidirectional/weakpull-up,strongpush-pull/strongpull-up,input-only/high-impedanceandopendrain.

thedrivingabilityofeachI/Oportcanbeupto20mA,but itdontexceedthismaximum120mAthat thecurrentofthewholechipof40-pinormorethan40-pinMCU,while90mAthatthecurrentofthewholechipof16-pinormorethan16-pinMCUor32-pinorlessthan32-pinMCU.

IfI/Oportsarenotenough,itcanbeextendedbyconnectinga74HC595(referenceprice:RMB0.21yuan).Besides,cascadingseveralchipsalsocanextendtodozensofI/Oports.

Package:LQFP64L(16mmx16mm),LQFP64S(12mmx12mm),LQFP48(9mmx9mm),LQFP44(12mmx12mm),LQFP32(9mmx9mm),SOP28,SKDIP28,PDIP40.

Allproductsarebaked8hoursinhigh-temperature175 afterbepackaged,Manufactureguaranteegoodquality.

InKeilCdevelopmentenvironment,selecttheIntel8052tocompilingandonlycontainasheaderfile.

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1.2 Block diagram of STC15W4K32S4 series MCUTheinternalstructureofSTC15W4K32S4seriesMCUisshownintheblockdiagrambelow.STC15W4K32S4seriesMCUincludescentralprocessorunit(CPU),programmemory(Flash),datamemory(SRAM),Timers/Counters, I/Oports,high-speedA/Dconverter(ADC),Comparator,Watchdog,high-speedasynchronousserialcommunicationports---UART(UART1/UART2/UART3/UART4),CCP/PWM/PCA,agroupofhigh-speedsynchronousserialperipheralinterface(SPI),internalhigh-preciseR/Cclock,internalhghlyreliableResetandsoon.STC15W4K32S4seriesMCUalmostincludesallofthemodulesrequiredindataacquisitionandcontrol,socanberegardedasanon-chipsystem(SysTemChiporSysTemonChip,abbreviatedasSTC,thisisthenameoriginofHongjingtechnologySTCLimited).

STC15W4K32S4seriesBlockDiagram

RAM256Bytes

RAMADDRRegister

ProgramMemory(Flash)8~63.5K

ProgramCounter(PC)

CCP/PCA/PWM

SPI

BRegister

ACC

TMP2 TMP1

StackPointer

ALU

PSW WDT

ControlUnit

XTAL2XTAL1

AUX-RAM3840Bytes

ISP/IAP

AddressGenerator

Timer/Counter0/1

EnhancedUART1

Port0,2,3,4,5,6,7Latch

Port0,2,3,4,5,6,7Driver

P0,P2,P3,P4,P5,P6,P7

Port1Latch

Port1Driver

P1.0~P1.7

ADC

P1.0~P1.7

8

Timer/Counter2

Power-DownWake-upSpecialTimer

InternalhghlyreliableReset(16levelsoptionalthreshold

voltageofreset)

Timer/Counter3/4

UART2(S2)

UART3(S3)

UART4(S4)Comparator

Internalhigh-preciseR/Cclock(0.3%)1%temperaturedrift(-40 ~+85 )while0.6%innormaltemperature(-20 ~+65 )

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1.3 Pin Configurations of STC15W4K32S4 series MCUAllpackagesmeetEURoHSstandards

CCPisabbreviationforCapture,Compare,PWM

Note P0portscanbemultiplexedasAddress/Databus notasA/DConverter.8channelsofA/DConverterareonP1.

Consequently P0.x/ADxmeansthatP0.xcanbeusedasAddress/Databus,whileP1.x/ADCxmeansP1.xcanbeusedasA/Dconversionchannelinthepinmap.

T0CLKOreferstotheprogrammableclockoutputofTimer/Counter0(outputbydividingthefrequencyoftheinternalsystemclockortheinputclockofexternalpinT0/P3.4);




T4CLKOreferstotheprogrammableclockoutputofTimer/Counter4(outputbydividingthefrequencyoftheinternalsystemclockortheinputclockofexternalpinT4/P0.7).

Inadditiontoprogrammableoutputontheinternalsystemclock,T0CLKO/T1CLKO/T2CLKO/T3CLKO/T4CLKOalsocanbeusedasdividerbydividingthefrequencyoftheinternalsystemclockortheinputclockofexternalpinT0/T1/T2/T3/T4.

MCLKOistheoutputofmasterclockwhosefrequencycanbedividedintoMCLK/1,/1,,MCLK/2,MCLK/4,MCLK/16ThemasterclockcaneitherbeinternalR/Cclockortheexternalinputclockortheexternalcrystaloscillator.MCLKisthefrequencyofmasterclock.

RecommendUART1on[P3.6/RxD_2,P3.7/TxD_2]or[P1.6/RxD_3/XTAL2,P1.7/TxD_3/XTAL1]

33 32 31 30 29 28 27 26 25 24 23

1 2 3 4 5 6 7 8 9 10 11

RxD

2/C

CP1

/AD

C0/

P1.0

CM

PO/E

CI/S

S/A

DC

2/P1

.2

TxD

2/C

CP0

/AD

C1/

P1.1

MO

SI/A

DC

3/P1

.3M

ISO

/AD

C4/

P1.4

SCLK

/AD

C5/

P1.5

PWM

6/M

CLK

O_2

/XTA

L2/R

xD_3

/AD

C6/

P1.6

P4.1

/MIS

O_3

PWM3_2/ALE/P4.5

VccP5.5/CMP+Gnd

P1.7/ADC7/TxD_3/XTAL1/PWM7P5.4/RST/MCLKO/SS_3/CMP-

P2.3

/A11

/MO

SI_2

/PW

M5

P2.2

/A10

/MIS

O_2

/PW

M4

P2.1

/A9/

SCLK

_2/P

WM

3

P4.3

/SC

LK_3

P3.5

/T1/

T0C

LKO

/CC

P0_2

P2.0

/A8/

RST

OU

T_LO

W

PWM

FLT_

2/T3

/AD

5/P0

.5PW

M7_

2/T4

CLK

O/A

D6/

P0.6

PWM

6_2/

T4/A

D7/

P0.7

TxD

2_2/

P4.7

T3CLKO/AD4/P0.4TxD4/AD3/P0.3RxD4/AD2/P0.2TxD3/AD1/P0.1RxD3/AD0/P0.0

PWM2_2/A15/P2.7CCP1_3/A14/P2.6CCP0_3/A13/P2.5

PWMFLT/SS_2/ECI_3/A12/P2.4

RxD2_2/P4.6 P4.0/MOSI_3

P3.1/TxD/T2P3.2/INT0P3.3/INT1P3.4/T0/T1CLKO/ECI_2

LQFP4442 I/O ports

3435363738394041424344

2221201918171615141312

1234567891011121314151617181920

4039383736353433323130292827262524232221

P4.5/ALE/PWM3_2

P4.1/MISO_3

RxD2/CCP1/ADC0/P1.0

CMPO/ECI/SS/ADC2/P1.2

VccCMP+/P5.5

Gnd

PWM7/XTAL1/TxD_3/ADC7/P1.7CMP-/SS_3/MCLKO/RST/P5.4

TxD2/CCP0/ADC1/P1.1

SCLK/ADC5/P1.5PWM6/MCLKO_2/XTAL2/RxD_3/ADC6/P1.6

MISO/ADC4/P1.4MOSI/ADC3/P1.3

P2.7/A15/PWM2_2P2.6/A14/CCP1_3P2.5/A13/CCP0_3P2.4/A12/ECI_3/SS_2/PWMFLTP2.3/A11/MOSI_2/PWM5P2.2/A10/MISO_2/PWM4P2.1/A9/SCLK_2/PWM3P2.0/A8/RSTOUT_LOW

P3.4/T0/T1CLKO/ECI_2P3.3/INT1P3.2/INT0P3.1/TxD/T2

RxD3/AD0/P0.0TxD3/AD1/P0.1RxD4/AD2/P0.2TxD4/AD3/P0.3

T3CLKO/AD4/P0.4PWMFLT_2/T3/AD5/P0.5

PWM7_2/T4CLKO/AD6/P0.6PWM6_2/T4/AD7/P0.7

PDIP40 38 I/O

ports

P3.0/RxD/INT4/T2CLKO

P4.2

/WR

/PW

M5_

2

P4.4

/RD

/PW

M4_

2

P3.6

/INT2

/RxD

_2/C

CP1

_2P3

.7/IN

T3/T

xD_2

/PW

M2

P4.2/WR/PWM5_2P4.4/RD/PWM4_2

P3.5/T1/T0CLKO/CCP0_2P3.6/INT2/RxD_2/CCP1_2P3.7/INT3/TxD_2/PWM2


P5.1

/TxD

3_2


PWM

6//X

TAL2

/RxD

_3/A

DC

6/P1

.6SC

LK/A

DC

5/P1

.5M

ISO

/AD

C4/

P1.4

MO

SI/A

DC

3/P1

.3C

MPO

/EC

I/SS/

AD

C2/

P1.2

TxD

2_2/

P4.7

TxD

2/C

CP0

/AD

C1/

P1.1

RxD

2/C

CP1

/AD

C0/

P1.0

PWM

6_2/

T4/A

D7/

P0.7

PWM

7_2/

T4C

LKO

/AD

6/P0

.6PW

MFL

T_2/

T3/A

D5/

P0.5

TxD

4_2/

P5.3

P5.0/RxD3_2

1 2 3 4 5 6 7 8 9 10 11 12

36 35 34 33 32 31 30 29 28 27 26 25

LQFP4846 I/O ports

373839404142434445464748

242322212019181716151413

VccP5.5/CMP+GndP4.0//MOSI_3



P4.1

/MIS

O_3

P2.3

/A11

/MO

SI_2

/PW

M5

P2.2

/A10

/MIS

O_2

/PW

M4

P2.1

/A9/

SCLK

_2/P

WM

3

P4.3

/SC

LK_3

P3.5

/T1/

T0C

LKO

/CC

P0_2

P2.0

/A8/

RST

OU

T_LO

W

P4.2

/WR

/PW

M5_

2

P4.4

/RD

/PW

M4_

2

P3.6

/INT2

/RxD

_2/C

CP1

_2P3

.7/IN

T3/T

xD_2

/PW

M2

PWM3_2/ALE/P4.5




RxD2_2/P4.6

RxD4_2/P5.2

LQFP44(12x12mm)

LQFP48(9x9mm)

Thespeedofexternalprogrammableclockoutputof5VMCUisalsonotmorethan13.5MHz,becausetheoutputspeedofI/OportofSTC15series5VMCUisnotmorethan13.5MHz.Thespeedofexternalprogrammableclockoutputof3.3VMCUisalsonotmorethan8MHz,becausetheoutputspeedofI/OportofSTC15series3.3VMCUisnotmorethan8MHz.

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LQFP3230 I/O ports

24 23 22 21 20 19 18 17

1 2 3 4 5 6 7 8

161514131211109

2526272829303132

PWM

7/X

TAL1

/TxD

_3/A

DC

7/P1

.7

RxD

2/C

CP1

/AD

C0/

P1.0

CM

PO/E

CI/S

S/A

DC

2/P1

.2Tx

D2/

CC

P0/A

DC

1/P1

.1

MO

SI/A

DC

3/P1

.3M

ISO

/AD

C4/

P1.4

SCLK

/AD

C5/

P1.5

PWM

6/M

CLK

O_2

/XTA

L2/R

xD_3

/AD

C6/

P1.6

VccP5.5/CMP+Gnd

P5.4/RST/MCLKO/CMP-

P3.1/TxD/T2P3.2/INT0P3.3/INT1

P3.4

/T0/

T1C

LKO

/EC

I_2


P2.3

/MO

SI_2

/PW

M5

P2.2

/MIS

O_2

/PW

M4

P2.1

/SC

LK_2

/PW

M3

P3.5

/T1/

T0C

LKO

/CC

P0_2

P2.0

/RST

OU

T_LO

W

P3.6

/INT2

/ RxD

_2/C

CP1

_2P3

.7/IN

T3/ T

xD_2

/PW

M2

RxD4/P0.2TxD3/P0.1RxD3/P0.0

P2.7CCP1_3/P2.6CCP0_3/P2.5

PWMFLT/SS_2/ECI_3/P2.4

TxD4/P0.3

28

27

26

25

24

23

22

21

20

19

18

17

16

15

CCP1_3/P2.6

P2.7

1

2

3

4

5

6

7

8

9

10

11

12

13

14

26 I/O ports

SOP28/SK

DIP28

RxD2/CCP1/ADC0/P1.0

CMPO/ECI/SS/ADC2/P1.2

Vcc

CMP+/P5.5

Gnd

PWM7/XTAL1/TxD_3/ADC7/P1.7

CMP-/MCLKO/RST/P5.4

TxD2/CCP0/ADC1/P1.1

SCLK/ADC5/P1.5

PWM6/MCLKO_2/XTAL2/RxD_3/ADC6/P1.6

MISO/ADC4/P1.4MOSI/ADC3/P1.3

P2.5/CCP0_3

P2.4/ECI_3/SS_2/PWMFLT

P2.3/MOSI_2/PWM5

P2.2/MISO_2/PWM4

P2.1/SCLK_2/PWM3

P2.0/RSTOUT_LOW

P3.4/T0/T1CLKO/ECI_2

P3.3/INT1

P3.2/INT0P3.1/TxD/T2

P3.5/T1/T0CLKO/CCP0_2

P3.6/INT2/RxD_2/CCP1_2P3.7/INT3/TxD_2/PWM2


LQFP32(9x9mm)P5

.1/T

xD3_

2


PWM

6/M

CLK

O_2

/XTA

L2/R

xD_3

/AD

C6/

P1.6

SCLK

/AD

C5/

P1.5

MIS

O/A

DC

4/P1

.4M

OSI

/AD

C3/

P1.3

CM

PO/E

CI/S

S/A

DC

2/P1

.2Tx

D2_

2/P4

.7Tx

D2/

CC

P0/A

DC

1/P1

.1R

xD2/

CC

P1/A

DC

0/P1

.0

PWM

6_2/

T4/A

D7/

P0.7

PWM

7_2/

T4C

LKO

/AD

6/P0

.6PW

MFL

T_2/

T3/A

D5/

P0.5

TxD

4_2/

P5.3

P5.0/RxD3_2

VccP5.5/CMP+GndP4.0//MOSI_3



P4.1

/MIS

O_3

P2.3

/A11

/MO

SI_2

/PW

M5

P2.2

/A10

/MIS

O_2

/PW

M4

P2.1

/A9/

SCLK

_2/P

WM

3

P4.3

/SC

LK_3

P3.5

/T1/

T0C

LKO

/CC

P0_2

P2.0

/A8/

RST

OU

T_LO

W

P4.2

/WR

/PW

M5_

2

P4.4

/RD

/PW

M4_

2

P3.6

/INT2

/RxD

_2/C

CP1

_2P3

.7/IN

T3/T

xD_2

/PW

M2

PWM3_2/ALE/P4.5




RxD2_2/P4.6

RxD4_2/P5.2

32313029282726252423222120191817

49505152535455565758596061626364

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

P6.0

P6.1

P6.2

P6.3

P6.4P6.5P6.6P6.7

P7.3

P7.2

P7.1

P7.0

P7.4P7.5P7.6P7.7

LQFP64LLQFP64S62 I/O ports

LQFP64L(16x16mm)LQFP64S(12x12mm)

AllpackagesmeetEURoHSstandardsCCPisabbreviationforCapture,Compare,PWM





T4CLKOreferstotheprogrammableclockoutputofTimer/Counter4(outputbydividingthefrequencyoftheinternalsystemclockortheinputclockofexternalpinT4/P0.7).

Inadditiontoprogrammableoutputontheinternalsystemclock,T0CLKO/T1CLKO/T2CLKO/T3CLKO/T4CLKOalsocanbeusedasdividerbydividingthefrequencyoftheinternalsystemclockortheinputclockofexternalpinT0/T1/T2/T3/T4.

Thespeedofexternalprogrammableclockoutputof5VMCUisalsonotmorethan13.5MHz,becausetheoutputspeedofI/OportofSTC15series5VMCUisnotmorethan13.5MHz.Thespeedofexternalprogrammableclockoutputof3.3VMCUisalsonotmorethan8MHz,becausetheoutputspeedofI/OportofSTC15series3.3VMCUisnotmorethan8MHz.

RecommendUART1on[P3.6/RxD_2,P3.7/TxD_2]or[P1.6/RxD_3/XTAL2,P1.7/TxD_3/XTAL1]

MCLKOistheoutputofmasterclockwhosefrequencycanbedividedintoMCLK/1, MCLK/2,/1, MCLK/2,,MCLK/2,MCLK/4,MCLK/16ThemasterclockcaneitherbeinternalR/Cclockortheexternalinputclockortheexternalcrystaloscillator.MCLKisthefrequencyofmasterclock.

8channelsofA/DConverterareonP1.

P1.x/ADCxmeansP1.xcanbeusedasA/Dconversionchannelinthepinmap.

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Mnemonic Add Name 7 6 5 4 3 2 1 0 ResetValueAUXR1P_SW1 A2H Auxiliaryregister1 S1_S1 S1_S0 CCP_S1 CCP_S0 SPI_S1 SPI_S0 0 DPS

00000000

P_SW2 BAH Peripheralfunctionswitch PWM67_S PWM2345_S S4_S S3_S S2_Sxxxxx000

CLK_DIV(PCON2) 97H ClockDivisionregister MCKO_S1MCKO_S0 ADRJ Tx_Rx MCLKO_2 CLKS2 CLKS1 CLKS0

00000000

INT_CLKO(AUXR2) 8FH

ExternalInterruptenableandClockoutputregister - EX4 EX3 EX2 MCKO_S2 T2CLKO T1CLKO T0CLKO

x0000000

UART1/S1 can be switched in 3 groups of pins by selecting the control bits S1_S0 and S1_S1.S1canbeswitchedin3 groups of pins by selecting the control bits S1_S0 and S1_S1.3groupsofpinsbyselectingthecontrolbitsS1_S0andS1_S1.S1_S1 S1_S0 UART1/S1canbeswitchedbetweenP1andP3

0 0 UART1/S1on[P3.0/RxD,P3.1/TxD]0 1 UART1/S1on[P3.6/RxD_2,P3.7/TxD_2]

1 0 UART1/S1on[P1.6/RxD_3/XTAL2,P1.7/TxD_3/XTAL1]whenUART1isonP1,pleaseusinginternalR/Cclock.1 1 Invalid

RecommedUART1on[P3.6/RxD_2,P3.7/TxD_2]or[P1.6/RxD_3/XTAL2,P1.7/TxD_3/XTAL1].

UART2/S2 can be switched in 2 groups of pins by selecting the control bit S2_S.S2canbeswitchedin2 groups of pins by selecting the control bit S2_S.2groupsofpinsbyselectingthecontrolbitS2_S.S2_S UART2/S2canbeswitchedbetweenP1andP4

0 UART2/S2on[P1.0/RxD2,P1.1/TxD2]1 UART2/S2on[P4.6/RxD2_2,P4.7/TxD2_2]





SPIcanbeswitchedin3 groups of pins by selecting the control bits SPI_S1 and SPI_S03groupsofpinsbyselectingthecontrolbitsSPI_S1andSPI_S0SPI_S1 SPI_S0 SPIcanbeswitchedinP1andP2andP4

0 0 SPIon[P1.2/SS,P1.3/MOSI,P1.4/MISO,P1.5/SCLK]0 1 SPIon[P2.4/SS_2,P2.3/MOSI_2,P2.2/MISO_2,P2.1/SCLK_2]1 0 SPIon[P5.4/SS_3,P4.0/MOSI_3,P4.1/MISO_3,P4.3/SCLK_3]1 1 Invalid

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Mnemonic Add Name 7 6 5 4 3 2 1 0 ResetValueAUXR1P_SW1 A2H

Auxiliaryregister1 S1_S1 S1_S0 CCP_S1 CCP_S0 SPI_S1 SPI_S0 0 DPS

00000000

P_SW2 BAH Peripheralfunctionswitch PWM67_S PWM2345_S S4_S S3_S S2_Sxxxxx000

CLK_DIV(PCON2) 97H

ClockDivisionregister MCKO_S1MCKO_S0 ADRJ Tx_Rx MCLKO_2 CLKS2 CLKS1 CLKS0

00000000

CCPcanbeswitchedin3 groups of pins by selecting the control bits CCP_S1 and CCP_S0.3groupsofpinsbyselectingthecontrolbitsCCP_S1andCCP_S0.CCP_S1 CCP_S0 CCPcanbeswitchedinP1andP2andP3

0 0 CCPon[P1.2/ECI,P1.1/CCP0,P1.0/CCP1]0 1 CCPon[P3.4/ECI_2,P3.5/CCP0_2,P3.6/CCP1_2]1 0 CCPon[P2.4/ECI_3,P2.5/CCP0_3,P2.6/CCP1_3]1 1 Invalid

PWM2/PWM3/PWM4/PWM5/PWMFLT can be switched in 2 groups of pins by selecting the control bitcanbeswitched in2 groups of pins by selecting the control bit2groupsofpinsbyselecting thecontrolbitPWM2345_S.

PWM2345_S PWM2/PWM3/PWM4/PWM5/PWMFLTcanbeswitchedbetweenP2,P3,andP40 PWM2/PWM3/PWM4/PWM5/PWMFLTon[P3.7/PWM2,P2.1/PWM3,P2.2/PWM4,

P2.3/PWM5,P2.4/PWMFLT]1 PWM2/PWM3/PWM4/PWM5/PWMFLTon[P2.7/PWM2_2,P4.5/PWM3_2,P4.4/

PWM4_2,P4.2/PWM5_2,P0.5/PWMFLT_2]

PWM6/PWM7 can be switched in 2 groups of pins by selecting the control bit PWM67_S.canbeswitchedin2 groups of pins by selecting the control bit PWM67_S.2groupsofpinsbyselectingthecontrolbitPWM67_S.PWM67_S PWM2/PWM3/PWM4/PWM5/PWMFLT can be switched between P0 and P1can be switched between P0 and P1canbeswitchedbetweenP0andP1

0 PWM6/PWM7on[P1.6/PWM6,P1.7/PWM7]1 PWM6/PWM7on[P0.7/PWM6_2,P0.6/PWM7_2]

DPS DPTRregistersselectbit.0 DPTR0isselected1 DPTR1isselected

ADRJ theadjustmentbitofADCresult0 ADC_RES[7:0]storehigh8-bitADCresult ADC_RESL[1:0]storelow2-bitADCresult1 ADC_RES[1:0]storehigh2-bitADCresult ADC_RESL[7:0]storelow8-bitADCresult

Tx_Rx thesetbitofrelayandbroadcastmodeofUART10 UART1worksonnormalmode1 UART1worksonrelayandbroadcastmode thattosayoutputtheinputlevelstateofRxDporttotheoutside

TxDpininrealtime,namelytheexternaloutputofTxDpincanreflecttheinputlevelstateofRxDport.

theRxDandTxDofUART1canbeswitchedin3groupsofpins:[RxD/P3.0,TxD/P3.1]; [RxD_2/P3.6,TxD_2/P3.7]; [RxD_3/P1.6,TxD_3/P1.7].

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CLKS2 CLKS1 CLKS0thecontrolbitofsystemclock

(Systemclockreferstothemasterclockthathasbeendividedfrequency,whichisofferedtoCPU,UARTs,SPI,Timers,CCP/PWM/PCAandA/DConverter)

0 0 0 Masterclockfrequency/1,Nodivision0 0 1 Masterclockfrequency/20 1 0 Masterclockfrequency/40 1 1 Masterclockfrequency/81 0 0 Masterclockfrequency/161 0 1 Masterclockfrequency/321 1 0 Masterclockfrequency/641 1 1 Masterclockfrequency/128

ThemasterclockcaneitherbeinternalR/Cclockortheexternalinputclockortheexternalcrystaloscillator.

MCKO_S2 MCKO_S1 MCKO_S0thecontrolbitofmasterclockoutputbydividingthefrequency

(ThemasterclockcaneitherbeinternalR/Cclockortheexternalinputclockortheexternalcrystaloscillator)

0 0 0 Masterclockdonotoutputexternalclock

0 0 1Masterclockoutputexternalclock butitsfrequencydonotbedividedandtheoutputclockfrequency=MCLK/1

0 1 0Masterclockoutputexternalclock butitsfrequencyisdividedby2 andtheoutputclockfrequency=MCLK/2



ThemasterclockcaneitherbeinternalR/Cclockortheexternalinputclockortheexternalcrystaloscillator.MCLKisthefrequencyofmasterclock.STC15W4K32S4seriesMCUoutputmasterclockonMCLKO/P5.4

MCLKO_2 toselectMasterClockoutputonwhere0 MasterClockoutputonMCLKO/P5.41 MasterClockoutputonMCLKO_2/XTAL2/P1.6ThemasterclockcaneitherbeinternalR/Cclockortheexternalinputclockortheexternalcrystaloscillator.

Mnemonic Add Name 7 6 5 4 3 2 1 0 ResetValueCLK_DIV(PCON2) 97H ClockDivisionregister MCKO_S1MCKO_S0 ADRJ Tx_Rx MCLKO_2 CLKS2 CLKS1 CLKS0

00000000

INT_CLKO(AUXR2) 8FH

ExternalInterruptenableandClockoutputregister - EX4 EX3 EX2 MCKO_S2 T2CLKO T1CLKO T0CLKO

x0000000

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Conclusion:STC15W4K32S4seriesMCUhave:Five16-bitrelaodableTimers/CountersthatareTimer/Counter0,Timer/Counter1,Timer/Counter2,Timer/Counter3andTimer/Counter4;8channelsand10bitsPWM(canachieve8D/Aconvertersor2timersor2externalinterruptsagain);specialpower-downwake-uptimer;5externalinterruptsINT0/INT1/INT2/INT3/INT4;4high-speedasynchronousserialports----UARTs(UART1/UART2/UART3/UART4canbeusedsimultaneously);ahigh-speedsynchronousserialperipheralinterface----SPI;8channelsand10bitshigh-speedA/Dconverter;agroupofComparator,2datapointers----DPTR;externaldatabusandsoon.

ToprovidecustomizedICservices

Ifuserwantstouse40-pinandaboveMCU,LQFP-44issuggested,whilePDIP-40isstillsuppliednormal;ifuserwantstousethe32-pinMCU,LQFP-32isrecommeded;ifuserwantstousethe28-pinMCU,SOP-28isrecommended.

Becausethelast7bytesoftheprogramareaisstoredmandatorilythecontentsofonlyglobalID,theprogramspacetheusercanactuallyuseis7bytessmallerthanthespaceshownintheselectiontable.

1.4 STC15W4K32S4 series Selection and Price Table

Type1T8051MCU

OperatingVoltage

(V)

Flash(byte)

SRAM(byte)

UART

SPI

commonTimersT0-T4

8channelsPWM Speical

Power-downWake-

upTimer

StandardExternalInterrupts

A/D8-channel

COMPARATOR

DPTR

EEPROM

InternalLow-

VoltageDetectionInterrupt

WDT

InternalHigh-

reliableReset(with

optionalthresholdvoltage)

InternalHigh-PreciseClock

OutputclockandresetsignalfromMCU

EncryptionDownload(toprotectyourcodefrombeingintercepted)

RS485Control

AllPackagesLQFP64/LQFP48/LQFP44/PDIP40LQFP32/SOP28/

SKDIP2815-bitspecialPWM(withadead-

sectioncontroller)

10-bitCCP

Priceofapartofpackages(RMB)

PDIP40

LQFP44

LQFP48

LQFP64S

STC15W4K32S4seriesMCUSelectionandPriceTableNote:8channelsPWMcanbeusedas8channelsDAC,2channelsCCPcanbeusedas2Timersor2externalinterrupts.

STC15W4K16S4 5.5-2.5 16K 4K 4 Y 5 6-ch 2-ch Y 5 10bits Y 2 45K Y Y 16-level Y Y Y Y 5.7 5.2 5.2 5.4STC15W4K32S4 5.5-2.5 32K 4K 4 Y 5 6-ch 2-ch Y 5 10bits Y 2 29K Y Y 16-level Y Y Y Y 5.9 5.5 5.5 5.7STC15W4K40S4 5.5-2.5 40K 4K 4 Y 5 6-ch 2-ch Y 5 10bits Y 2 21K Y Y 16-level Y Y Y Y 5.9 5.6 5.6 5.8STC15W4K48S4 5.5-2.5 48K 4K 4 Y 5 6-ch 2-ch Y 5 10bits Y 2 13K Y Y 16-level Y Y Y Y 5.9 5.6 5.6 5.8STC15W4K56S4 5.5-2.5 56K 4K 4 Y 5 6-ch 2-ch Y 5 10bits Y 2 5K Y Y 16-level Y Y Y Y 5.9 5.6 5.6 5.8

IAP15W4K58S4(whichitselfisaemluator)

5.5-2.5 58K 4K 4 Y 5 6-ch 2-ch Y 5 10bits Y 2 IAP Y Y 16-level Y Y Y Y

5.9 5.6 5.6 5.8TheprogramFlashinuserprogramareacanbeusedasEEPROM.

IAP15W4K61S4(whichitselfisaemluator)

5.5-2.5 61K 4K 4 Y 5 6-ch 2-ch Y 5 10bits Y 2 IAP Y Y 16-level Y Y Y Y


IRC15W4K63S4(Usingexternalcrystalorinternal24MHzclock)

5.5-2.5 63.5K 4K 4 Y 5 6-ch 2-ch Y 5 10bits Y 2 IAP Y Y Fixed Y Y N N


EncryptionDownload:pleaseburnsourcecodewithencryptionkeyontoMCUinthefactory.Then,youcanmakeasimpleupdatesoftwarejustwithone"update"buttonbyfisrtlyusingthefuction"encrytiondownload"andthen"releaseproject"toupdateyourselfcodeunabledtobeinterceptedwhenyouneedtoupgradeyourcode.

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1.5 Naming rules of STC15W4K32S4 series MCUxxx15 x4Kxxxx--35x-xxxxxxx

PinNumbere.g.64,48,44,40,32,28

Packagetypee.g.LQFP,PDIP,SOP,SKDIP

TemperaturerangeI:Industrial,-40 -85C:Commercial,0 -70

Operatingfrequency35:Upto35MHz

Programspace,e.g.08:8KB16:16KB24:24KB32:32KB48:48KB56:56KB58:58KB61:61KB63:63.5KBetc.

OperatingVoltageW:5.5V~2.5V

SRAM:4K=4096bytes

S4 4UARTs(canbeusedsimultaneously)SPIInternalEEPROMA/DConverter(PWMalsocanbeusedasDAC)CCP/PWM/PCA

STC:TheprogramFlashinuserprogramareacannotbeusedasEEPROM.,buttherearespecialEEPROM.

IAP:TheprogramFlashinuserprogramareacanbeusedasEEPROM.IRC:TheprogramFlashinuserprogramareacanbeusedasEEPROM,andtouse

externalcrystalorinternal24MHzclock

STC1T8051MCU,Speedis8~12timesfasterthanthetraditional8051inthesameworkingfrequency

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1.6 Application Circuit Diagram for ISP of STC15W4K series



1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

Vcc

Gnd

T1OUT

R1IN

R1OUT

T1IN

T2IN

R2OUT

C1+

V+

C1-

C2+

C2-

V-

T2OUT

R2IN

0.1F

Vcc

Vcc

GndPC_RxD(COMPin2)

PC_TxD(COMPin3)

23

5

10K

STC3232,STC232,MAX232,SP232 PCCOM

Vcc

MCU_RxD(P3.0)

MCU_TxD(P3.1)

10K

31

30

29

28

27

26

25

24

23

22

21

40

39

38

37

36

35

34

33

32

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

PWM3_2/ALE/P4.5

MISO_3/P4.1

P1.0/ADC0/CCP1/RxD2

P1.2/ADC2/SS/ECI/CMPO

Vcc

P5.5/CMP+

Gnd

P1.7/ADC7/TxD_3/XTAL1/PWM7

P5.4/RST/MCLKO/SS_3/CMP-

P1.1/ADC1/CCP0/TxD2

P1.5/ADC5/SCLK

P1.6/ADC6/RxD_3/XTAL2/MCLKO_2/PWM6

P1.4/ADC4/MISO

P1.3/ADC3/MOSI

PWM2_2/A15/P2.7

CCP1_3/A14/P2.6

CCP0_3/A13/P2.5


PWM5/MOSI_2/A11/P2.3

PWM4/MISO_2/A10/P2.2

PWM3/SCLK_2/A9/P2.1

RSTOUT_LOW/A8/P2.0

ECI_2/T1CLKO/T0/P3.4

INT1/P3.3

INT0/P3.2

T2/TxD/P3.1

P0.0/AD0/RxD3

P0.1/AD1/TxD3

P0.2/AD2/RxD4

P0.3/AD3/TxD4

P0.4/AD4/T3CLKO

P0.5/AD5/T3/PWMFLT_2

P0.6/AD6/T4CLKO/PWM7_2

P0.7/AD7/T4/PWM6_2

PWM5_2/WR/P4.2

PWM4_2/RD/P4.4

CCP0_2/T0CLKO/T1/P3.5

CCP1_2/RxD_2/INT2/P3.6

PWM2/TxD_2/INT3/P3.7

T2CLKO/INT4/RxD/P3.0

10F

0.1F

0.1F

0.1F

Vin

SW1PowerOn

47F 0.1F

Vcc

C1 C2

CircuitdiagramforISPofSTC MCU,STCRS-232Converter

ThispartofthecircuithasnothingtodowiththeISPdownloads

SystemPower(canbefromUSB

portofPC)

InternalhghlyreliableReset,soexternalresetcircuitcanbecompletelyremoved.

P5.4/RST/MCLKOpinfactorydefaultstotheI/Oport,whichcanbesetasRSTresetpin(activehigh)throughtheSTC-ISPprogrammer.

Internalhigh-preciseR/Cclock(3%),1%temperaturedrift(-40 ~+85 )while0.6%innormaltemperature(-20 ~+65 ),soexternalexpensivecrysalcanbecompletelyremoved.

Recommend to add decoupling capacitor C1(47F) and C2(0.1F) between Vcc and Gnd that can remove power noiseandimprovetheanti-interferenceability.

PleasepoweronthetargetMCUafterpressdown thebutton"Download/Program"onSTC-ISP.exewhenburningcodetoMCU.

thelinewidthmaybeonly30~50mil


1.6.1 Application Circuit Diagram for ISP using RS-232 Converter

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CH340G

300

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

Vcc

RS232

RTS#

DTR#

DCD#

RI#

DSR#

CTS#

GND

TxD

RxD

V3

UD+

UD-

XI

XO

1234

C3

0.01uF

USB

USB+5V

D-

D+

X612MHz

C422pF

C522pF

C60.1uF 10F

C7

USB+5V

10K

Vcc

10K

31

30

29

28

27

26

25

24

23

22

21

40

39

38

37

36

35

34

33

32

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

PWM3_2/ALE/P4.5

MISO_3/P4.1

P1.0/ADC0/CCP1/RxD2


Vcc

P5.5/CMP+

Gnd



P1.1/ADC1/CCP0/TxD2

P1.5/ADC5/SCLK


P1.4/ADC4/MISO

P1.3/ADC3/MOSI

PWM2_2/A15/P2.7

CCP1_3/A14/P2.6

CCP0_3/A13/P2.5




PWM3/SCLK_2/A9/P2.1

RSTOUT_LOW/A8/P2.0


INT1/P3.3

INT0/P3.2

T2/TxD/P3.1

P0.0/AD0/RxD3

P0.1/AD1/TxD3

P0.2/AD2/RxD4

P0.3/AD3/TxD4

P0.4/AD4/T3CLKO



P0.7/AD7/T4/PWM6_2

PWM5_2/WR/P4.2

PWM4_2/RD/P4.4



PWM2//TxD_2/INT3/P3.7


Vin

SW1PowerOn

47F 0.1F

Vcc

C1 C2



ThispartofthecircuithasnothingtodowiththeISPdownloads

SystemPower(canbefromUSB

portofPC)

InternalhghlyreliableReset,soexternalresetcircuitcanbecompletelyremoved.

P5.4/RST/MCLKOpinfactorydefaultstotheI/Oport,whichcanbesetasRSTresetpin(activehigh)throughtheSTC-ISPprogrammer.

Internalhigh-preciseR/Cclock(3%),1%temperaturedrift(-40 ~+85 )while0.6%innormaltemperature(-20 ~+65 ),soexternalexpensivecrysalcanbecompletelyremoved.

Recommend to add decoupling capacitor C1(47F) and C2(0.1F) between Vcc and Gnd that can remove power noiseandimprovetheanti-interferenceability.



TheresistoranddiodearetoavoidUSBdevicetopowerthetargetMCU

RecommendtochooseCH340G(ItspinsarenotcompatiblewithCH341's,butwhosepricelessthanRMB1.1yuanismorecheap),alsoyoucanchoosePL2303(itspriceislessthanRMB1.0yuan),refertowww.wch.cnformoredetail.

CircuitdiagramforISPofSTC MCUUSB convert Serial Port

1.6.2 Application Circuit Diagram for ISP using USB to convert Serial

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1.6.3 Application Circuit Diagram for ISP directly using USB portP3.0/P3.1 of STC15W4K series and IAP15W4K58S4 connect directly with D-/D+ of USB

1234

USB+5V

D-D+

31

30

29

28

27

26

25

24

23

22

21

40

39

38

37

36

35

34

33

32

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

PWM3_2/ALE/P4.5

MISO_3/P4.1

P1.0/ADC0/CCP1/RxD2


Vcc

P5.5/CMP+

Gnd



P1.1/ADC1/CCP0/TxD2

P1.5/ADC5/SCLK


P1.4/ADC4/MISO

P1.3/ADC3/MOSI

PWM2_2/A15/P2.7

CCP1_3/A14/P2.6

CCP0_3/A13/P2.5




PWM3/SCLK_2/A9/P2.1

RSTOUT_LOW/A8/P2.0


INT1/P3.3

INT0/P3.2

T2/TxD/P3.1

P0.0/AD0/RxD3

P0.1/AD1/TxD3

P0.2/AD2/RxD4

P0.3/AD3/TxD4

P0.4/AD4/T3CLKO



P0.7/AD7/T4/PWM6_2

PWM5_2/WR/P4.2

PWM4_2/RD/P4.4



PWM2//TxD_2/INT3/P3.7


SystemPower

47F 0.01F

Vcc

C1 C2

47pF

47pF24MHz

22

USB+5V

5

USB-Micro 1N4729-3.6VV

R-tube,RMB0.03yuan

USB-Micro



TheMCUcanbepoweredbyUSBportorsystempower

ApplicationCircuitDiagramforISPdirectlyusingUSBport,USB-ISP.MCUP3.0/P3.1connectdirectlywithD-/D+ofUSB

Note P0portscanbemultiplexedasAddress/DatabusnotasA/DConverter.8channelsofA/DConverterareonP1.


TheApplicationCircuitDiagramappliestoSTC15W4KseriesandIAP15W4K58S4MCUonly.

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1.7 Pin Descriptions of STC15W4K32S4 series MCU

MNEMONICPin Number

DESCRIPTIONLQFP64 LQFP48LQFP44 PDIP40 SOP32 LQFP32 SOP28SKDIP28P0.0/AD0/

RxD3 59 43 40 1 1 29 -P0.0 commonI/OportPORT0[0]AD0 Address/DataBusRxD3 ReceiveDataPortofUART3

P0.1/AD1/TxD3 60 44 41 2 2 30 -

P0.1 commonI/OportPORT0[1]AD1 Address/DataBusTxD3 TransitDataPortofUART3

P0.2/AD2/RxD4 61 45 42 3 3 31 -

P0.2 commonI/OportPORT0[2]AD2 Address/DataBusRxD4 ReceiveDataPortofUART4

P0.3/AD3/TxD4 62 46 43 4 4 32 -

P0.3 commonI/OportPORT0[3]AD3 Address/DataBusTxD4 TransitDataPortofUART4

P0.4/AD4/T3CLKO 63 47 44 5 - - -

P0.4 commonI/OportPORT0[4]

AD4 Address/DataBus

T3CLKO

T3ClockOutputThepincanbeconfiguredforT3CLKObysettingT4T3M[0]bit/T3CLKO

P0.5/AD5/T3/PWMFLT_2 2 2 1 6 - - -

P0.5 commonI/OportPORT0[5]AD5 Address/DataBusT3 ExternalinputofTimer/Counter3

PWMFLT_2ControlPWMtoemergencystop


3 3 2 7 - - -

P0.6 commonI/OportPORT0[6]AD6 Address/DataBus

T4CLKO

T4ClockOutputThepincanbeconfiguredforT4CLKObysettingT4T3M[4]bit/T4CLKO

PWM7_2

TheseventhoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P0.7/AD7/T4/PWM6_2 4 4 3 8 - - -

P0.7 commonI/OportPORT0[7]AD7 Address/DataBusT4 ExternalinputofTimer/Counter4

PWM6_2

ThesixthoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P1.0/ADC0/CCP1/RxD2 9 5 4 9 5 1 3

P1.0 commonI/OportPORT1[0]ADC0 ADCinputchannel-0

CCP1

Captureofexternalsignal(measurefrequencyorbeusedasexternalinterrupts) high-speedPulseandPulse-WidthModulationoutputchannel-1

RxD2 ReceiveDataPortofUART2

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MNEMONICPin Number

DESCRIPTIONLQFP64 LQFP48 LQFP44 PDIP40 SOP32 LQFP32 SOP28SKDIP28

P1.1/ADC1/CCP0/TxD2 10 6 5 10 6 2 4


CCP0


TxD2 TransitDataPortofUART2


12 8 7 11 7 3 5


SSSlaveselectionsignalofsynchronousserialperipheralinterface----SPI

ECI ExternalpulseinputpinofCCP/PCAcounter

CMPOTheoutputportofreslutcomparedbycomparator

P1.3/ADC3/MOSI 13 9 8 12 8 4 6

P1.3 commonI/OportPORT1[3]ADC3 ADCinputchannel-3MOSI MasterOutputSlaveInputofSPI

P1.4/ADC4/MISO 14 10 9 13 9 5 7

P1.4 commonI/OportPORT1[4]ADC4 ADCinputchannel-4MISO MasterIutputSlaveOnputofSPI

P1.5/ADC5/SCLK 15 11 10 14 10 6 8


SCLK ClockSignalofsynchronousserialperipheralinterface----SPI

P1.6/ADC6/RxD_3/XTAL2/

MCLKO_2/PWM6

16 12 11 15 11 7 9

P1.6 commonI/OportPORT1[6]ADC6 ADCinputchannel--6RxD_3 ReceiveDataPortofUART1

MCLKO_2

Masterclockoutput;theoutputfrequencycanbeMCLK/1,MCLK/2andMCLK/4.Themaster clock can either beinternalR/Cclockor theexternalinputclockor theexternalcrystaloscillator.

XTAL2

Outputfromtheinvertingamplifierofinternalclockcircuit.Thispinshouldbefloatedwhenanexternaloscillatorisused.

PWM6

ThesixthoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

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MNEMONICPin Number



17 13 12 16 12 8 10

P1.7 commonI/OportPORT1[7]ADC7 ADCinputchannel--7TxD_3 TransitDataPortofUART1

XTAL1

Inputtotheinvertingoscillatoramplifierofinternalclockcircuit.Receivestheexternaloscillatorsignalwhenanexternaloscillatorisused.

PWM7

TheseventhoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P2.0/A8/RSTOUT_LOW

45 33 30 32 25 21 23

P2.0 commonI/OportPORT2[0]A8 TheeighthbitofAddressbusA8

RSTOUT_LOWthepinoutputlowafterpower-onandduringreset,whichcanbesettooutputhighbysoftware

P2.1/A9/SCLK_2/PWM3

46 34 31 33 26 22 24

P2.1 commonI/OportPORT2[1]A9 TheninthbitofAddressbusA9

SCLK_2 ClockSignalofsynchronousserialperipheralinterface----SPI

PWM3

ThethirdoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P2.2/A10/MISO_2/PWM4

47 35 32 34 27 23 25

P2.2 commonI/OportPORT2[2]A10 ThetenthbitofAddressbusA10

MISO_2 MasterIutputSlaveOnputofSPI

PWM4

ThefourthoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P2.3/A11/MOSI_2/PWM5

48 36 33 35 28 24 26

P2.3 commonI/OportPORT2[3]A11 TheeleventhbitofAddressbusA11

MOSI_2 MasterOutputSlaveInputofSPI

PWM5

ThefifthoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P2.4/A12/ECI_3/SS_2/

PWMFLT49 37 34 36 29 25 27

P2.4 commonI/OportPORT2[4]A12 ThetwelfthbitofAddressbusA12

ECI_3 ExternalpulseinputpinofCCP/PCAcounter

SS_2 Slaveselectionsignalofsynchronousserialperipheralinterface----SPIPWMFLT ControlPWMtoemergencystop

P2.5/A13/CCP0_3

50 38 35 37 30 26 28

P2.5 commonI/OportPORT2[5]A13 ThethirteenthbitofAddressbusA13

CCP0_3


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MNEMONICPin Number

DESCRIPTIONLQFP64 LQFP48LQFP44 PDIP40SOP32LQFP32 SOP28SKDIP28

P2.6/A14/CCP1_3

51 39 36 38 31 27 1

P2.6 commonI/OportPORT2[6]A14 ThefourteenthbitofAddressbusA14

CCP1_3


P2.7/A15/PWM2_2

52 40 37 39 32 28 2

P2.7 commonI/OportPORT2[7]A15 ThefifteenthbitofAddressbusA15

PWM2_2

ThesecondoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P3.0/RxD/INT4

/T2CLKO27 19 18 21 17 13 15

P3.0 commonI/OportPORT3[0]RxD ReceiveDataPortofUART1

INT4Externalinterrupt4,whichonlycanbegeneratedonfallingedge./INT4supportspower-downwaking-up

T2CLKOT2ClockOutputThepincanbeconfiguredforT2CLKObysettingINT_CLKO[2]bit/T2CLKO

P3.1/TxD/T2 28 20 19 22 18 14 16P3.1 commonI/OportPORT3[1]TxD TransitDataPortofUART1T2 ExternalinputofTimer/Counter2

P3.2/INT0 29 21 20 23 19 15 17


INT0

Externalinterrupt0,whichbothcanbegeneratedonrisingandfallingedge.INT0onlycangenerateinterruptonfallingedgeifIT0(TCON.0)issetto1.And,INT0bothcangenerateinterruptonrisingandfallingedgeifIT0(TCON.0)issetto0.

P3.3/INT1 30 22 21 24 20 16 18


INT1

Externalinterrupt1,whichbothcanbegeneratedonrisingandfallingedge.INT1onlycangenerateinterruptonfallingedgeifIT1(TCON.2)issetto1.And,INT1bothcangenerateinterruptonrisingandfallingedgeifIT1(TCON.2)issetto0.INT1supportspower-downwaking-up

P3.4/T0/T1CLKO/

ECI_231 23 22 25 21 17 19

P3.4 commonI/OportPORT3[4]T0 ExternalinputofTimer/Counter0

T1CLKOT1ClockOutputThepincanbeconfiguredforT1CLKObysettingINT_CLKO[1]bit/T1CLKO

ECI_2 ExternalpulseinputpinofCCP/PCAcounter

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MNEMONICPin Number


P3.5/T1/T0CLKO/CCP0_2

34 26 23 26 22 18 20

P3.5 commonI/OportPORT3[5]T1 ExternalinputofTimer/Counter1

T0CLKO

T0ClockOutputThepincanbeconfiguredforT0CLKObysettingINT_CLKO[0]bit/T0CLKO

CCP0_2


P3.6/INT2/RxD_2/CCP1_2

35 27 24 27 23 19 21


INT2

Externalinterrupt2,whichonlycanbegeneratedonfallingedge./INT2supportspower-downwaking-up

RxD_2 ReceiveDataPortofUART1

CCP1_2


P3.7/INT3/TxD_2/PWM2

36 28 25 28 24 20 22


INT3

Externalinterrupt3,whichonlycanbegeneratedonfallingedge./INT3supportspower-downwaking-up

TxD_2 TransitDataPortofUART1

PWM2

ThesecondoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P4.0/MOSI_3 22 18 17 - - - -P4.0 commonI/OportPORT4[0]

MISO_3 MasterIutputSlaveOnputofSPI

P4.1/MISO_3 41 29 26 29 - - -P4.1 commonI/OportPORT4[1]

MOSI_3 MasterOutputSlaveInputofSPI

P4.2/WR/PWM5_2

42 30 27 30 - - -


WR Writepulseofexternaldatamemory

PWM5_2

ThefifthoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P4.3/SCLK_3 43 31 28 - - - -P4.3 PORT4[3]

SCLK_3 ClockSignalofsynchronousserialperipheralinterface----SPI

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MNEMONICPin Number

DESCRIPTIONLQFP64 LQFP48 LQFP44 PDIP40 SOP32LQFP32 SOP28SKDIP28

P4.4/RD/PWM4_2

44 32 29 31 - - -


RD Readpulseofexternaldatamemory

PWM4_2

ThefourthoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P4.5/ALE/PWM3_2 57 41 38 40 - - -


ALEAddressLatchEnable.Itisusedforexternaldatamemorycycles(MOVX)

PWM3_2

ThethirdoutputchannelofPulseWidthModulation.Theportmodedefautstoinput-only(high-impedance)modeafterpower-onorreset

P4.6/RxD2_2 58 42 39 - - - -


RxD2_2 ReceiveDataPortofUART2

P4.7/TxD2_2 11 7 6 - - - -


TxD2_2 TransitDataPortofUART2

P5.0/RxD3_2 32 24 - - - - -

P5.0 commonI/OportPORT5[0]RxD3_2 ReceiveDataPortofUART3

P5.1/TxD3_2 33 25 - - - - -

P5.1 commonI/OportPORT5[1]TxD3_2 TransitDataPortofUART3

P5.2/RxD4_2 64 48 - - - - -

P5.2 commonI/OportPORT5[2]RxD4_2 ReceiveDataPortofUART4

P5.3/TxD4_2 1 1 - - - - -

P5.3 commonI/OportPORT5[3]TxD4_2 TransitDataPortofUART4

P5.4/RST/MCLKO/

SS_3/CMP-18 14 13 17 13 9 11


RSTResetpin.Ahighonthispinforatleasttwomachinecycleswillresetthedevice.

MCLKO

Masterclockoutput;theoutputfrequencycanbeMCLK/1,MCLK/2andMCLK/4.The master clock can either beinternalR/Cclockor theexternalinput clockor theexternal crystaloscillator.

SS_3 Slaveselectionsignalofsynchronousserialperipheralinterface----SPICMP- Comparatornegativeinput

P5.5/CMP+ 20 16 15 19 15 11 13P5.5 commonI/OportPORT5[5]

CMP+ Comparatorpositiveinput

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MNEMONICPin Number


P6.0 5 commonI/OportPORT6[0]P6.1 6 commonI/OportPORT6[1]P6.2 7 commonI/OportPORT6[2]P6.3 8 commonI/OportPORT6[3]P6.4 23 commonI/OportPORT6[4]P6.5 24 commonI/OportPORT6[5]P6.6 25 commonI/OportPORT6[6]P6.7 26 commonI/OportPORT6[7]P7.0 37 commonI/OportPORT7[0]P7.1 38 commonI/OportPORT7[1]P7.2 39 commonI/OportPORT7[2]P7.3 40 commonI/OportPORT7[3]P7.4 53 commonI/OportPORT7[4]P7.5 54 commonI/OportPORT7[5]P7.6 55 commonI/OportPORT7[6]P7.7 56 commonI/OportPORT7[7]Vcc 19 15 14 18 14 10 12 ThepositivepoleofpowerGnd 21 17 16 20 16 12 14 Thenegativepoleofpower,Gound

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1.8 Package Dimension Drawings of STC15 series MCU

1.8.1 Dimension Drawings of DFN8

D

E

D2

E2

H

K

M0.

10

R

L

b

LASERMARKPIN1l.D.

(A3)A

A1

e

TOPVIEW SIDEVIEW BOTTOMVIEW

COMMONDIMENSIONSUNITSOFMEASURE=mm(MILLIMETER)SYMBOL MIN. NOM. MAX.

A 0.70 0.75 0.80A1 0.00 0.02 0.05A3 0.20REFb 0.25 0.30 0.35D 3.90 4.00 4.10E 3.90 4.00 4.10

D2 2.10 2.20 2.30E2 2.10 2.20 2.30e 0.55 0.65 0.75H 0.35REFK 0.35REFL 0.45 0.55 0.65R 0.13 - -

SIDEVIEW 0.08

Note:

Alldimensionsdonotincludemoldflashorprotrusions

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8-PINSMALLOUTLINEPACKAGE(SOP8)DimensionsinInches

D

E1 E

A1

A

be50mil

LL1

COMMONDIMENSIONS(UNITSOFMEASURE=INCH)

SYMBOL MIN. NOM. MAX.A 0.053 - 0.069

A1 0.004 - 0.010b - 0.016 -D 0.189 - 0.196E 0.228 - 0.244E1 0.150 - 0.157e 0.050L 0.016 - 0.050L1 0.008 00 - 80

UNIT:INCH,1inch=1000mil

0.004max.

Dimension Drawings of SOP8

1.8.2 Dimension Drawings of SOP8

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D

E1

A

L

e

E eA

COMMONDIMENSIONS(UNITSOFMEASURE=INCH)

SYMBOL MIN. NOM. MAX.A - - 0.210

A1 0.015 - -A2 0.125 0.130 0.135b - 0.018 -b1 - 0.060 -D 0.355 0.365 0.400E - 0.300 -E1 0.245 0.250 0.255e - 0.100 -L 0.115 0.130 0.1500 0 7 15eA 0.335 0.355 0.375

UNIT:INCH,1inch=1000mil

b1

b

A1

8-Pin Plastic Dual Inline Package (DIP8)DimensionsinInches

0

A2

18mil

100mil

60mil

Dimension Drawings of DIP8

1.8.3 Dimension Drawings of DIP8

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16-PINSMALLOUTLINEPACKAGE(SOP16)

D(9.9mm)

E1

E(6.

0mm

)

A3

Documents

STC15W4K32S4 series MCU d. Data Sheet - stcmcudata.com · STC15W4K32S4 series MCU Manual Temporary Technical Adviser : ... 1.9.1 Test Porgram that Switch CCP/PWM/PCA ... 2.2.8 Warm