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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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ST10F167 数据表(PDF) 47 Page - STMicroelectronics |
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ST10F167 数据表(HTML) 47 Page - STMicroelectronics |
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47 / 69 page  47/69 ST10F167 20.5 AC Characteristics 20.5.1 Test Waveforms Figure 20.2 Input Output Waveforms Figure 20.3 Float Waveforms 2.4V 0.45V Test Points 0.2VDD+0.9 0.2VDD+0.9 0.2VDD-0.1 0.2VDD-0.1 AC inputs during testing are driven at 2.4 V for a logic ‘1’ and 0.4 V for a logic ‘0’. Timing measurements are made at VIH min for a logic ‘1’ and VIL max for a logic ‘0’. For timing purposes a port pin is no longer floating when a 100 mV change from load voltage occurs,but begins to float whena 100 mV change from the loaded V OH/VOL level occurs ( I OH/IOL = 20 mA). Timing Reference Points VLoad +0.1V VLoad -0.1V VOH -0.1V VOL +0.1V VLoad VOL VOH 3 |
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