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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT66F20 датащи(PDF) 17 Page - Holtek Semiconductor Inc |
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HT66F20 датащи(HTML) 17 Page - Holtek Semiconductor Inc |
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17 / 250 page  Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions fLIRC System Clock (LIRC) 5V Ta=25 °C -10% 32 +10% kHz fTIMER Timer Input Pin Frequency ¾¾ ¾ ¾ 1 fSYS tRES External Reset Low Pulse Width ¾¾ 1 ¾¾ ms tINT Interrupt Pulse Width ¾¾ 1 ¾¾ tSYS tLVR Low Voltage Width to Reset ¾¾ 120 240 480 ms tLVD Low Voltage Width to Interrupt ¾¾ 20 45 90 ms tLVDS LVDO stable time ¾¾ 15 ¾¾ ms tBGS VBG Turn on Stable Time ¾¾ 200 ¾¾ ms tEERD EEPROM Read Time ¾¾ ¾ 45 90 ms tEEWR EEPROM Write Time ¾¾ ¾ 24 ms tSST System Start-up Timer Period (Wake-up from HALT) ¾ fSYS=HXT or LXT ¾ 1024 ¾ tSYS fSYS=ERC or HIRC ¾ 15~16 ¾ fSYS=LIRC OSC ¾ 1~2 ¾ Note: 1. tSYS=1/fSYS 2. * For fERC, as the resistor tolerance will influence the frequency a precision resistor is recommended. 3. To maintain the accuracy of the internal HIRC oscillator frequency, a 0.1 mF decoupling capacitor should be connected between VDD and VSS and located as close to the device as possible. A/D Converter Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions AVDD A/D Converter Operating Voltage ¾¾ 2.7 ¾ 5.5 V VADI A/D Converter Input Voltage ¾¾ 0 ¾ VREF V VREF A/D Converter Reference Voltage ¾¾ 2 ¾ AVDD V DNL Differential Non-linearity 5V tADCK= 1.0 ms ¾±1 ±2 LSB INL Integral Non-linearity 5V tADCK= 1.0 ms ¾±2 ±4 LSB IADC Additional Power Consumption if A/D Converter is Used 3V No load, tADCK= 0.5 ms ¾ 0.90 1.35 mA 5V No load, tADCK= 0.5 ms ¾ 1.20 1.80 mA tADCK A/D Converter Clock Period ¾¾ 0.5 ¾ 10 ms tADC A/D Conversion Time (Include Sample and Hold Time) ¾ 12-bit A/D Converter ¾ 16 ¾ tADCK tADS A/D Converter Sampling Time ¾¾ ¾ 4 ¾ tADCK tON2ST A/D Converter On-to-Start Time ¾¾ 2 ¾¾ ms HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Rev. 1.20 17 June 4, 2010 Ta=25 °C |
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