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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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TDA8002AT/3/C2 Scheda tecnica(PDF) 13 Page - NXP Semiconductors |
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TDA8002AT/3/C2 Scheda tecnica(HTML) 13 Page - NXP Semiconductors |
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13 / 28 page  1997 Nov 04 13 Philips Semiconductors Product specification IC card interface TDA8002 Fault detection The following fault conditions are monitored by the circuit: • Short-circuit or high current on VCC • Removing card during transaction • VDD dropping • Overheating. When one or more of these faults are detected, the circuit pulls the interrupt line OFF to its active LOW state and a deactivation sequence is initiated. In case the card is present the interrupt line OFF is set to HIGH when the microcontroller has reset the CMDVCC line HIGH (after completion of the deactivation sequence). In case the card is not present OFF remains LOW. Fig.12 Emergency deactivation sequence. handbook, full pagewidth MGE740 I/O CLK RST high - Z tde OSC_INT/64 OFF PRES VCC t10 t11 t12 t13 t14 |
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