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AN1978 Datasheet(PDF) 12 Page - STMicroelectronics

Part # AN1978
Description  SMART CARD INTERFACE
PDF  14 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN1978 Datasheet(HTML) 12 Page - STMicroelectronics

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AN1978 - APPLICATION NOTE
12/14
Figure 16: Short-circuit on Vcc during the activation.
Figure 17: Short-circuit on Vcc after the activation.
Conditions:
V
DD= 3V
V
DDP=4.75V;
5/3V=H.
CH1: Vcc
CH2: CMDVCC.
CH3: RST .
CH4 : Vcc output current
In this case the short circuit
is
present
before
and
during
the
activation
sequence,
then
the
automatic
deactivation
starts as soon as the fault
is acknowledged.
Conditions:
V
DD= 3V
V
DDP=4.75V;
5/3V=H.
CH1: Vcc
CH2: CMDVCC.
CH3: RST .
CH4 : Vcc output current
In this case the short circuit
is
present
before
and
during
the
activation
sequence,
then
the
automatic
deactivation
starts as soon as the fault
is acknowledged.
Conditions:
V
DD= 3V
V
DDP=4.75V;
5/3V=H.
CH1: Vcc
CH2: CMDVCC.
CH3: RST .
CH4 : Vcc output current
In this case the short circuit
is
present
before
and
during
the
activation
sequence,
then
the
automatic
deactivation
starts as soon as the fault
is acknowledged.
Conditions:
V
DD= 3V
V
DDP=4.75V;
5/3V=H
CH1: Vcc
CH2: CMDVCC.
CH3: RST .
CH4 : Vcc output current
In this case the short
circuit
acts
after
the
activation sequence then
the automatic deactivation
starts after about 8µs.
Conditions:
V
DD= 3V
V
DDP=4.75V;
5/3V=H
CH1: Vcc
CH2: CMDVCC.
CH3: RST .
CH4 : Vcc output current
In this case the short
circuit
acts
after
the
activation sequence then
the automatic deactivation
starts after about 8µs.
Conditions:
V
DD= 3V
V
DDP=4.75V;
5/3V=H
CH1: Vcc
CH2: CMDVCC.
CH3: RST .
CH4 : Vcc output current
In this case the short
circuit
acts
after
the
activation sequence then
the automatic deactivation
starts after about 8µs.



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