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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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HT45F12 bảng dữ liệu(PDF) 64 Page - Holtek Semiconductor Inc |
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HT45F12 bảng dữ liệu(HTML) 64 Page - Holtek Semiconductor Inc |
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64 / 104 page  Rev. 0.00 �4 �e�te��e� ��� �01� Rev. 0.00 �5 �e�te��e� ��� �01� HT45F12 8-Bit Flash MCU with Op Amps & Comparators HT45F12 8-Bit Flash MCU with Op Amps & Comparators LDO (�.4V/3.3V) V�EL VDD LDOEN OUT REN1 VLDOX VH1 (0.9*VLDOX) VH0 ([0.5+1/1�]*VLDOX) VM (0.5*VLDOX) VL0 ([0.5-1/1�]*VLDOX) VL1 (0.1*VLDOX) VLOE VLOE BUF1 �W4 �W5 LDO (�.4V/3.3V)� �ust �e connected f�o� the �in RTOTAL = 500k٠o� �00k٠VCAP/PC4 Operational Amplifiers TherearetwofullyintegratedOperationalAmplifiersinthedevice,OPA1andOPA2.TheseOPAs canbeusedforsignalamplificationaccordingtospecificuserrequirements.TheOPAscanbe disabledorenabledentirelyundersoftwarecontrolusinginternalregisters.Withspecificcontrol registers,someOPArelatedapplicationscanbemoreflexibleandeasiertobeimplemented,suchas UnitGainBuffer,Non-InvertingAmplifier,InvertingAmplifierandvariouskindsoffilters,etc.In addition,thedeviceprovidesthecalibrationfunctiontoadjusttheOPAoffset. Operational Amplifier Registers TheinternalOperationalAmplifiersarefullyunderthecontrolofinternalregisters,OPA1C0, OPA1C1,OPA2C0,OPA2C1andOPA2C2.Theseregisterscontrolenable/disablefunction,input pathselection,gaincontrol,polarityandcalibrationfunction. OPA1C0 register Bit 7 6 5 4 3 2 1 0 Na�e A1OP A1OFM A1R� A1OF4 A1OF3 A1OF� A1OF1 A1OF0 R/W R R/W R/W R R/W R/W R/W R/W POR 0 0 0 1 0 0 0 0 Bit7 A1OP:Operationalamplifieroutput;positivelogic.Thisbitisreadonly. Bit6 A1OFM:Operationalamplifiermodeorinputoffsetvoltagecancellationmode 0:Operationalamplifiermode 1:Inputoffsetvoltagecancellationmode Bit5 A1RS:Operationalamplifierinputoffsetvoltagecancellationreferenceselectionbit 0:SelectA1Nasthereferenceinput 1:SelectA1Pasthereferenceinput Bit4~0 A1OF4~A1OF0:Operationalamplifierinputoffsetvoltagecancellationcontrolbits |
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