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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST10F273 датащи(PDF) 144 Page - STMicroelectronics |
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ST10F273 датащи(HTML) 144 Page - STMicroelectronics |
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144 / 179 page  Electrical characteristics ST10F273 144/179 24.8 AC characteristics 24.8.1 Test waveforms Figure 41. Input/output waveforms Figure 42. Float waveform 2.4V 0.4V Test Points 2.0V 2.0V 0.8V 0.8V AC inputs during testing are driven at 2.4V for a logic ‘1’ and 0.4V for a logic ‘0’. Timing measurements are made at VIH Min. for a logic ‘1’ and VIL max for a logic ‘0’. Timing Reference Points VLOAD + 0.1V VLOAD - 0.1V VOH - 0.1V VOL + 0.1V VLOAD VOL VOH For timing purposes a port pin is no longer floating when VLOAD changes of ±100mV. It begins to float when a 100mV change from the loaded VOH/VOL level occurs (IOH/IOL = 20mA). |
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