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HT45F2020 Datasheet(PDF) 8 Page - Holtek Semiconductor Inc |
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HT45F2020 Datasheet(HTML) 8 Page - Holtek Semiconductor Inc |
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8 / 85 page  Rev. 1.00 8 April 11, 2017 Rev. 1.00 9 April 11, 2017 HT45F2020/HT45F2022 Sound Effect Generator Flash MCU HT45F2020/HT45F2022 Sound Effect Generator Flash MCU Pin Description Withtheexceptionofthepowerpins,allpinsonthedevicecanbereferencedbyitsPortname,e.g. PA0,PA1etc.,whichrefertothedigitalI/Ofunctionofthepins.HoweverthesePortpinsarealso sharedwithotherfunctionsuchastheTimerModulepinsetc.Thefunctionofeachpinislistedin thefollowingtable,howeverthedetailsbehindhoweachpinisconfigurediscontainedinother sectionsofthedatasheet. Pin Name Function OPT I/T O/T Description PA0/PTPI/ICPDA PA0 PAPU PAWU PAS0 ST CMOS General purpose I/O. Register enabled pull-high and wake-up. PTPI PAS0 ST — PTM capture input ICPDA — ST CMOS ICP Address/Data PA1/PTP/PTPB PA1 PAPU PAWU PAS0 ST CMOS General purpose I/O. Register enabled pull-high and wake-up. PTP PAS0 — CMOS PTM output PTPB PAS0 — CMOS PTM inverted output PA2/PTCK/ICPCK PA2 PAPU PAWU PAS0 ST CMOS General purpose I/O. Register enabled pull-high and wake-up. PTCK PAS0 ST — PTM clock input ICPCK — ST — ICP Clock pin PA3/PTP/PTPB PA3 PAPU PAWU PAS0 ST CMOS General purpose I/O. Register enabled pull-high and wake-up. PTP PAS0 — CMOS PTM output PTPB PAS0 — CMOS PTM inverted output VDD VDD — PWR — Power Supply VSS VSS — PWR — Ground The following pin are only for the HT45V2020/HT45V2022 NC NC — — — No connection OCDSDA OCDSDA — ST CMOS OCDS Address/Data, for EV chip only OCDSCK OCDSCK — ST — OCDS Clock pin, for EV chip only Legend:I/T:Inputtype O/T:Outputtype OPT:Optionalbyregisteroption PWR:Power ST:SchmittTriggerinput CMOS:CMOSoutput |
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