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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HT37B90 데이터시트(PDF) 5 Page - Holtek Semiconductor Inc |
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HT37B90 데이터시트(HTML) 5 Page - Holtek Semiconductor Inc |
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5 / 80 page  PadName I/O Configuration Option Function AUD_IN I ¾ PowerAmp.inputpin VBIAS O ¾ PowerAmp.voltagebiasreferencepin. RES I ¾ Schmitt Triggerresetinput,activelow OSC1 OSC2 I O CrystalorRC OSC1, OSC2 are connected to an external RC network or external crystal, determined by configuration option, for the internal system clock. If the RC system clock option is selected, pin OSC2 can be used to measure the sys- temclockat1/8frequency. Note: 1.EachpinonPA canbeprogrammedthroughaconfigurationoptiontohaveawake-upfunction. 2.Individualpinscanbeselectedtohavepull-highresistors. 3.BecausethetwotimersareusedbyMIDItheexternaltimerpinfunctionsaredisabled. AbsoluteMaximumRatings SupplyVoltage ..........................VSS-0.3V to VSS+5.5V StorageTemperature ........................... -50°Cto125°C InputVoltage .............................VSS-0.3Vto VDD+0.3V OperatingTemperature .......................... -40°Cto85°C IOL Total ..............................................................150mA IOH Total............................................................-100mA TotalPowerDissipation .....................................500mW Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. D.C.Characteristics Ta=25 °C Symbol Parameter TestConditions Min. Typ. Max. Unit VDD Conditions VDD OperatingVoltage ¾ fOSC=12.8MHz(37B50/30) 2.4 3.0 5.5 V fOSC=12.8MHz(37B90/70) 3.0 ¾ 5.5 V IDD OperatingCurrent (Crystal OSC orRC OSC) 3V Noload, fOSC=8MHz~12.8MHz, DAC disable ¾ 8 12 mA 5V ¾ 20 30 mA ISTB1 StandbyCurrent(WDT Disable) 3V Noload,systemHALT, WDT disable ¾ ¾ 1 mA 5V ¾ ¾ 2 mA ISTB2 StandbyCurrent(WDT Enable) 3V Noload,systemHALT, WDT enable ¾ ¾ 5 mA 5V ¾ ¾ 10 mA VIL1 InputLowVoltageforI/OPorts ¾ ¾ 0 ¾ 0.3VDD V VIH1 InputHighVoltageforI/OPorts ¾ ¾ 0.7VDD ¾ VDD V VIL2 InputLowVoltage(RES) ¾ ¾ 0 ¾ 0.4VDD V VIH2 InputHighVoltage(RES) ¾ ¾ 0.9VDD ¾ VDD V IOL I/OPortSegmentLogicOutput SinkCurrent 3V VOL=0.1VDD 6 12 ¾ mA 5V 10 25 ¾ mA IOH I/OPortSegmentLogicOutput SourceCurrent 3V VOH=0.9VDD -2 -4 ¾ mA 5V -5 -8 ¾ mA HT37B90/HT37B70/HT37B50/HT37B30 Rev.1.00 5 June22,2017 |
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