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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ST8024LACTR Fiches technique(PDF) 24 Page - STMicroelectronics |
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ST8024LACTR Fiches technique(HTML) 24 Page - STMicroelectronics |
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24 / 35 page  Functional description ST8024L 24/35 Doc ID 17709 Rev 5 Figure 7. Deactivation sequence 6.9 VCC generator The VCC generator has a capacity to supply up to 80 mA (max.) continuously at 5 V, 65 mA (max.) at 3 V, and 45 mA (max.) at 1.8 V. An internal overload detector operates at approximately 120 mA. Current samples to the detector are internally filtered, allowing spurious current pulses up to 200 mA with a duration in the order of µs to be drawn by the card without causing deactivation. The average current must stay below the specified maximum current value. For reasons of VCC voltage accuracy, a 100 nF capacitor with an ESR < 350 m Ω should be tied to CGND near to pin VCC, and a 100 nF capacitor with the same ESR should be tied to CGND near card reader contact C1. |
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