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TDA8002AT/3 Scheda tecnica(PDF) 13 Page - NXP Semiconductors

Il numero della parte TDA8002AT/3
Spiegazioni elettronici  IC card interface
PDF  28 Pages
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Produttore elettronici  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA8002AT/3 Scheda tecnica(HTML) 13 Page - NXP Semiconductors

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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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