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ST8024CDR 数据表(PDF) 8 Page - STMicroelectronics

部件名 ST8024CDR
功能描述  Smartcard interface
PDF  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST8024CDR 数据表(HTML) 8 Page - STMicroelectronics

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Electrical characteristics
ST8024
8/30
Table 6.
Step-up Converter (VDD = 3.3V, VDDP = 5V, fXTAL = 10MHz, unless otherwise noted.
Typical values are to Ta = 25°C)
Symbol
Parameter
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
VUP(av)
Output Voltage on pin VUP
(average value)
VCC = 5 V
5.2
5.7
6.2
V
VCC = 3 V; VDDP = 3.3 V
3.5
3.9
4.3
Table 7.
Card supply voltage characteristics (VDD = 3.3V, VDDP = 5V, fXTAL = 10MHz,
unless otherwise noted. Typical values are to TA = 25°C) (Note 1)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
CVCC
External capacitance
on pin VCC
Note 2 and Note 3
80
220
nF
VCC
Card supply voltage
(including ripple
voltage)
Card Inactive; |ICC| = 0 mA 5 and 3V card
-0.1
0
0.1
V
Card Inactive; |ICC| = 1 mA 5 and 3V 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; 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; current pulses,
QP = 40 nAs
5 V card
4.65
5
5.25
3 V card
2.76
3
3.20
Card Active; current pulses
QP =40 nAs with
|ICC| < 200mA, tp < 400 ns
5 V card
4.65
5
5.25
3 V card
2.76
3
3.20
VCC
(RIPPLE)
(P-P)
Ripple voltage on VCC
(Peak to Peak value)
fRIPPLE = 20 KHz to 200 MHz
350
mV
|ICC|
Card supply current
VCC = 0 to 5V
80
mA
VCC = 0 to 3V
65
VCC short circuit to GND
90
120
SR
Slew rate
Slew up or down
0.08
0.15
0.22
V/µs



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