TDA8002CTSLASHASLASHC1 datasheet(15/28 Pages) PHILIPS

15 / 28 page

1999 Oct 12

Philips Semiconductors

Product speciﬁcation

IC card interface

TDA8002C

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 the event that the

card is present the interrupt line OFF is set to HIGH state

when the microcontroller has reset the CMDVCC line

HIGH (after completion of the deactivation sequence).

In the event that the card is not present OFF remains

LOW.

handbook, full pagewidth

FCE480

I/O

CLK

RST

LOW

tde

OFF

PRES

VCC

t10

t11

t12

t13

t14

OSC_INT/64

Fig.14 Emergency deactivation sequence.

TDA8002CT/A/C1 数据表(PDF) 15 Page - NXP Semiconductors

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