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TDA8002CT/A/C1 bảng dữ liệu(PDF) 15 Page - NXP Semiconductors

tên linh kiện TDA8002CT/A/C1
Giải thích chi tiết về linh kiện  IC card interface
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nhà sản xuất  PHILIPS [NXP Semiconductors]
Trang chủ  http://www.nxp.com
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TDA8002CT/A/C1 bảng dữ liệu(HTML) 15 Page - NXP Semiconductors

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1999 Oct 12
15
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.



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