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ST92196A датащи(PDF) 229 Page - STMicroelectronics |
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ST92196A датащи(HTML) 229 Page - STMicroelectronics |
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229 / 268 page ![]() 229/268 ELECTRICAL CHARACTERISTICS AC ELECTRICAL CHARACTERISTICS (Cont’d) N/A = not applicable Cb = capacitance of one bus in pF I2C Interface Electrical specifications Symbol Parameter Standard mode I2C Fast mode I2C Unit Min Max Min Max VIL Low level input voltage: fixed input levels VDD-related input levels -0.5 -0.5 1.5 0.3 VDD -0.5 -0.5 1.5 0.3 VDD V VIH High level input voltage: VDD-related input levels 0.8 VDD VDD+0.5 0.8 VDD VDD+0.5 V VHYS Hysteresis of Schmitt trigger inputs fixed input levels VDD-related input levels N/A N/A N/A N/A 0.2 0,05 VDD V TSP Pulse width of spikes which must be sup- pressed by the input filter N/A N/A 0 ns 50 ns ns VOL1 VOL2 Low level output voltage (open drain and open collector) at 3 mA sink current at 6 mA sink current 0 N/A 0.4 N/A 0 0 0.4 0.6 V TOF Output fall time from VIH min to VIL max with a bus capacitance from 10 pF to 400 pF with up to 3 mA sink current at VOL1 with up to 6 mA sink current at VOL2 N/A 250 N/A 20+0.1C b 20+0.1C b 250 250 ns I Input current each I/O pin with an input voltage between 0.4V and 0.9 VDD max - 10 10 -10 10 µA C Capacitance for each I/O pin 10 10 pF |
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