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HT45F77 Datasheet(PDF) 12 Page - Holtek Semiconductor Inc |
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HT45F77 Datasheet(HTML) 12 Page - Holtek Semiconductor Inc |
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12 / 203 page  Rev. 1.20 12 De�e��e� 1�� 201� Rev. 1.20 13 De�e��e� 1�� 201� HT45F77 Body Fat Scale Flash MCU HT45F77 Body Fat Scale Flash MCU Pin Name Function OPT I/T O/T Descriptions PE�/SEG20 PE� PEPU ST CMOS Gene�al pu�pose I/O. Registe� ena�led pull-up. SEG20 LCD3 — CMOS LCD Seg�ent output PE5/SEG21 PE5 PEPU ST CMOS Gene�al pu�pose I/O. Registe� ena�led pull-up. SEG21 LCD3 — CMOS LCD Seg�ent output PE�/SEG22 PE� PEPU ST CMOS Gene�al pu�pose I/O. Registe� ena�led pull-up. SEG22 LCD3 — CMOS LCD Seg�ent output PE7/SEG23 PE7 PEPU ST CMOS Gene�al pu�pose I/O. Registe� ena�led pull-up. SEG23 LCD3 — CMOS LCD Seg�ent output SEG2�~SEG35 SEGn — — CMOS LCD Seg�ent output COM0~COM3 COMn — — CMOS LCD Co��on output V1 V1 — — — LCD voltage pu�p V2 V2 — — — LCD voltage pu�p C1 C1 — — — LCD voltage pu�p C2 C2 — — — LCD voltage pu�p VMAX VMAX — PWR — LCD Powe� Sele�tion PLCD PLCD — PWR — LCD Powe� SIN SIN — — AO Sine Wave Output FVL FVL — AI AO Left Foot Channel 1 FIL FIL — AI AO Left Foot Channel 2 RF1 RF1 — AI AO Refe�en�e 1 I�pedan�e Channel RF2 RF2 — AI AO Refe�en�e 2 I�pedan�e Channel FIR FIR — AI AO Right Foot Channel 2 FVR FVR — AI AO Right Foot Channel 1 TO TO — — AO OPA Output CP0N CP0N — AI — Peak Dete�to� Input RFC RFC — AI — ADC Analog Input VIN VIN — PWR — LDO Input AVDD(VOUT) AVDD (VOUT) — PWR — Analog Powe� Supply (LDO Output) AVSS AVSS — PWR — Analog G�ound VCM VCM — — PWR ADC Inte�nal Co��on Mode Voltage Output VERFP VERFP — PWR — ADC Positive Refe�en�e Input (Exte�nal) VERFN VERFN — PWR — ADC Negative Refe�en�e Input (Exte�nal) AN0~AN3 ANn — AI — ADC Input Channel 0~3 VDD VDD — PWR — Digital Powe� supply VSS VSS — PWR — Digital G�ound Note:I/T:Inputtype O/T:Outputtype OPT:Optionalbyconfigurationoption(CO)orregisteroption PWR:Power CO:Configurationoption ST:SchmittTriggerinput CMOS:CMOSoutput AI:Analoginput AO:Analogoutput HXT:Highfrequencycrystaloscillator LXT:Lowfrequencycrystaloscillator |
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