Datasheet

DS_1215F_003 73S1215F Data Sheet
Rev. 1.4 117
3.7 Smart Card Interface Requirements
Symbol Parameter Condition Min Typ. Max Unit
Card Power Supply (V
CC
) Regulator
General conditions, -40°C < T < 85°C, 4.75V < V
PC
< 6.0V, 2.7V < V
DD
< 3.6V
V
CC
Card supply Voltage
including ripple and
noise
Inactive mode -0.1 0.1 V
Inactive mode, I
CC
= 1mA -0.1 0.4 V
Active mode; I
CC
<65mA; 5V 4.65 5.25 V
Active mode; I
CC
<65mA; 5V, NDS
condition
4.75 5.25 V
Active mode; I
CC
< 65mA; 3V 2.85 3.15 V
Active mode; I
CC
< 40mA; 1.8V 1.68 1.92 V
Active mode; single pulse of 100mA for
2μs; 5 volt, fixed load = 25mA
4.6 5.25 V
Active mode; single pulse of 100mA for
2μs; 3v, fixed load = 25mA
2.7 3.15 V
Active mode; current pulses of 40nAs
with peak |I
CC
| <200mA, t <400ns; 5V
4.6 5.25 V
Active mode; current pulses of 40nAs
with peak |I
CC
| <200mA, t <400ns; 5V
4.65 5.25 V
Active mode; current pulses of 40nAs
with peak |I
CC
| <200mA,t <400ns; 3V
2.7 3.15 V
Active mode; current pulses of 20nAs
with peak |I
CC
| <100mA,t <400ns; 1.8V
1.62 1.92 V
V
CCrip
V
CC
Ripple f
RIPPLE
= 20kHz – 200MHz 350 mV
I
CCmax
Card supply output
current
Static load current, V
CC
>1.65 40 mA
Static load current, V
CC
>4.6 or 2.7 volts
as selected
90
I
CCF
I
CC
fault current
Class A, B (5V and 3V) 100 180
mA
Class C (1.8V)
60 130
V
SR
Vcc slew rate, rise
Rise rate on activate C=1.0μF
0.06 0.15 0.25
V/μ
s
V
SF
Vcc slew rate, fall
Fall rate on deactivate, C=1.0μF
0.075 0.15 0.6
V/μ
s
V
rdy
Vcc ready voltage
(VCCOK = 1)
5V operation, Vcc rising
4.6 V
3V operation, Vcc rising
2.75 V
1.8V operation, Vcc rising
1.65 V
C
F
External filter
capacitor (V
CC
to
GND)
C
F
should be ceramic with low ESR
(<100MΩ).
1 3.3
μF