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ST8024LACDR Folha de dados(PDF) 24 Page - STMicroelectronics

Nome de Peças ST8024LACDR
Descrição Electrónicos  Smartcard interface
PDF  35 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST8024LACDR Folha de dados(HTML) 24 Page - STMicroelectronics

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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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