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HT66F40 датащи(PDF) 22 Page - Holtek Semiconductor Inc |
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HT66F40 датащи(HTML) 22 Page - Holtek Semiconductor Inc |
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22 / 244 page ![]() A.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions fCPU Operating Clock ¾ 2.2V~5.5V DC ¾ 8 MHz 2.7V~5.5V DC ¾ 12 MHz 4.5V~5.5V DC ¾ 20 MHz fSYS System Clock (HXT) ¾ 2.2V~5.5V 0.4 ¾ 8 MHz 2.7V~5.5V 0.4 ¾ 12 MHz 4.5V~5.5V 0.4 ¾ 20 MHz fHIRC System Clock (HIRC) 3V/5V Ta=25 °C -2% 4 +2% MHz 3V/5V Ta=25 °C -2% 8 +2% MHz 5V Ta=25 °C -2% 12 +2% MHz 3V/5V Ta=0~70 °C -5% 4 +5% MHz 3V/5V Ta=0~70 °C -4% 8 +4% MHz 5V Ta=0~70 °C -5% 12 +3% MHz 2.2V~ 3.6V Ta=0~70 °C -7% 4 +7% MHz 3.0V~ 5.5V Ta=0~70 °C -5% 4 +9% MHz 2.2V~ 3.6V Ta=0~70 °C -6% 8 +4% MHz 3.0V~ 5.5V Ta=0~70 °C -4% 8 +9% MHz 3.0V~ 5.5V Ta=0~70 °C -6% 12 +7% MHz 2.2V~ 3.6V Ta= -40°C~85°C -12% 4 +8% MHz 3.0V~ 5.5V Ta= -40°C~85°C -10% 4 +9% MHz 2.2V~ 3.6V Ta= -40°C~85°C -15% 8 +4% MHz 3.0V~ 5.5V Ta= -40°C~85°C -8% 8 +9% MHz 3.0V~ 5.5V Ta= -40°C~85°C -12% 12 +7% MHz fERC System Clock (ERC) 5V Ta=25 °C, R=120kW * -2% 8 +2% MHz 5V Ta=0~70 °C, R=120kW * -5% 8 +6% MHz 5V Ta= -40°C~85°C, R=120k W * -7% 8 +9% MHz 3.0V~ 5.5V Ta= -40°C~85°C, R=120k W * -9% 8 +10% MHz 2.2V~ 5.5V Ta= -40°C~85°C, R=120k W * -15% 8 +10% MHz fLXT System Clock (LXT) ¾¾ ¾ 32.768 ¾ kHz HT68F20/HT68F30/HT68F40/HT68F50/HT68F60 HT68FU30/HT68FU40/HT68FU50/HT68FU60 Rev. 1.60 22 October 24, 2011 |
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