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ST8024 数据表(PDF) 9 Page - STMicroelectronics

部件名 ST8024
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

ST8024 数据表(HTML) 9 Page - STMicroelectronics

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ST8024
Electrical characteristics
9/30
Table 8.
Crystal connection (pins XTAL1 and XTAL2) (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
CXTAL1,2
External capacitance on
pins XTAIL1, XTAIL2
Depends on type of crystal or
resonator used
15
pF
fXTAL
Crystal Frequency
2
26
MHz
fXTAL1
Frequency applied on pin
XTAL1
026
MHz
VIH
High level input voltage on
pin XTAIL1
0.7 VDD
VDD+0.3
V
VIL
Low level input voltage on
pin XTAIL1
-0.3
+0.3VDD
V
Table 9.
Data Lines (PINS I/O, I/OUC, AUX1, AUX2, AUX1UC AND AUX2UC) (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
tD(I/O-I/OUC),
tD(I/OUC-I/O)
I/O to I/OUC, I/OUC to I/O falling edge
delay
200
ns
tpu
Active pull-up pulse width
100
ns
fI/O(MAX)
Maximum frequency on data lines
1
MHz
CI
Input capacitance on data lines
10
pF
Table 10.
Data lines to card reader (pins I/O, AUX1 AND AUX2 with integrated 11k
Ω Pull-up
resistor to VCC (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
VO(inactive) Output Voltage
Inactive mode
NO LOAD
0
0.1
V
IO(inactive)=1mA
0.3
IO(inactive) Output Current
Inactive mode; pin grounded
-1
mA
VOH
High Level Output Voltage
No DC Load
0.9 VCC
VCC+0.1
V
5 and 3 V cards; IOH < - 40µA
0.75 VCC
VCC+0.1
|IOH| ≥ 10mA
0
0.4
VOL
Low Level Output Voltage
IOL = 1 mA
0
0.2
V
IOL ≥ 15 mA
VCC-0.4
VCC
VIH
High Level Input Voltage
1.5
VCC+0.3
V
VIL
Low Level Input Voltage
0.3
0.8
V
|ILIH|
High Level Input Leakage
Current
VIH = VCC
10
µA
|IIL|
Low Level Input Current
VIL = 0 V
600
µA
RPU
Integrated pull-up resistor
Pull-up resistor to VCC
911
13
k
Ω



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