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ST8024LTR Scheda tecnica(PDF) 11 Page - STMicroelectronics

Il numero della parte ST8024LTR
Spiegazioni elettronici  Smartcard interface
PDF  35 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST8024LTR Scheda tecnica(HTML) 11 Page - STMicroelectronics

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ST8024L
Electrical characteristics
Doc ID 17709 Rev 5
11/35
Table 7.
Step-up converter
Symbol
Parameter(1)
Test conditions
Min.
Typ.
Max.
Unit
fCLK
Clock frequency
Card active
2.2
3.2
MHz
Vth(vd-vf)
Threshold voltage for
step-up converter to
change to voltage
follower
5 V card
5.2
5.8
6.2
V
3 V card
3.8
4.1
4.4
1.8 V card
3.8
4.1
4.4
VUP
Output voltage on pin
VUP (average value)
5 V card
5.2
5.7
6.2
V
3 V card
3.5
3.9
4.3
1.8 V card
3.5
3.9
4.3
1.
VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are at TA = 25 °C.
Table 8.
Card supply voltage characteristics
Symbol
Parameter(1)
Test conditions
Min.
Typ.
Max.
Unit
CVCC
External capacitance
on pin VCC
See(2)
80
400
nF
VCC
Card supply voltage
(including ripple
voltage)
Card inactive; |ICC| = 0 mA
5 V, 3 V and
1.8 V card
-0.1
0
0.1
V
Card inactive; |ICC| = 1 mA
5 V, 3 V and
1.8 V card
-0.1
0
0.3
Card active; |ICC| < 80 mA
5 V card
4.75
5
5.25
Card active; |ICC| < 65 mA
3 V card
2.85
3
3.15
Card active; |ICC| < 45 mA
1.8 V card
1.68
1.8
1.92
Card active; single current
pulse IP = –100 mA; tp = 2 µs
5 V card
4.65
5
5.25
Card active; single current
pulse IP = –100 mA; tp = 2 µs
3 V card
2.76
3
3.20
Card active; single current
pulse IP = –100 mA; tp = 2 µs
1.8 V card
1.62
1.8
1.98
Card active; current pulses,
QP = 40 nAs
5 V card
4.65
5
5.25
3 V card
2.76
3
3.20
1.8 V card
1.62
1.8
1.98
Card active; current pulses
QP = 40 nAs with
|ICC| < 200 mA, tp < 400 ns
5 V card
4.65
5
5.25
3 V card
2.76
3
3.20
1.8 V card
1.62
1.8
1.98
VCC
(RIPPLE)
(P-P)
Ripple voltage on
VCC (peak-to-peak
value)
fRIPPLE = 20 kHz to 200 MHz
350
mV



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