DS8023 Maxim, DS8023 Datasheet - Page 12

• Manufacturer Part Number: DS8023
• Description: The DS8023 smart card interface IC is a low-cost, low-power, analog front-end for a smart card reader designed for all ISO 7816, EMV*, and GSM11-11 applications
• Manufacturer: Maxim

Smart Card Interface
Figure 6. Behavior of PRES, OFF, CMDVCC, and V
Figure 7. Emergency Deactivation Sequence (Card Extraction)
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CMDVCC
PRES
PRES
OFF
V
CLK
OFF
RST
V
CC
I/O
CC
DEBOUNCE
t
10
BY CARDS WITHDRAWAL
DEACTIVATION CAUSED
CC
t
12
t
DE
t
13
t
14
DEBOUNCE
t
15
DEACTIVATION CAUSED
BY SHORT CIRCUIT