ST8024 STMicroelectronics, ST8024 Datasheet - Page 5

• Manufacturer Part Number: ST8024
• Description: SMARTCARD INTERFACE
• Manufacturer: STMicroelectronics

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Table 5: Electrical Characteristics Over Recommended Operating Conditions (V
5V, f
Table 6: Step-up Converter (V
values are to T
∆V
V
Symbol
V
V
V
Symbol
V
th(ext)rise
V
th(ext)fall
th(vd-vf)
HYS(ext)
V
P
f
UP(av)
V
I
HYS(ext)
V
CLK
I
DDP
HYS2
DDP
t
DD
TOT
XTAL
I
DD
th2
W
L
= 10MHz, unless otherwise noted. Typical values are to T
Clock Frequency
Threshold voltage for
Step-up Converter to
change to voltage follower
Output Voltage on pin V
(average value)
Supply Voltage
Supply Voltage for the
voltage doubler
Supply Current
DC/DC converter Supply
Current
Falling Threshold Voltage
on V
Hysteresis of Threshold
Voltage V
External rising Threshold
Voltage on V
External falling Threshold
Voltage on V
Hysteresis of Threshold
Voltage V
Hysteresis of Threshold
Voltage V
with temperature
Width of internal Power-On
reset pulse
Leakage current on pin
PORADJ
Total power dissipation
a
DD
= 25°C)
Parameter
Parameter
th2
th(ext)
th(ext)
DD
DD
variation
UP
DD
= 3.3V, V
V
V
Card Inactive
Card Active; f
Inactive mode
Active mode; f
|I
V
V
no external resistors at pin PORADJ;
V
no external resistors at pin PORADJ
external resistor bridge at pin PORADJ;
V
external resistor bridge at pin PORADJ;
V
external resistor bridge at pin PORADJ
external resistor bridge at pin PORADJ
no external resistor at pin PORADJ
external resistor bridge at pin PORADJ
V
V
Continuous operation; T
Card active
5 V card
3 V card
V
V
CC
CC
CC
CC
CC
DD
DD
DD
PORADJ
PORADJ
CC
CC
| = 0
= 5 V
= 3 V; V
= 5V; |I
= 5V; |I
= 5V; |I
= 3V; |I
level falling
level rising
level falling
< 0.5 V
> 1.0 V
DDP
Test Conditions
CC
CC
CC
CC
Test Conditions
DDP
CLK
CLK
= 5V, f
| < 80 mA
| < 20 mA
| = 80 mA
| = 65 mA
= 3.3 V
= f
= f
XTAL
XTAL
XTAL
a
; C
= -25 to 85°C
; C
L
= 10MHz, unless otherwise noted. Typical
L
= 30pF
= 30pF;
a
= 25°C)
Min.
Min.
2.35
1.18
1.12
-0.1
2.7
4.0
3.0
2.2
5.2
3.8
5.2
3.5
50
30
-1
4
8
Typ.
2.45
1.21
1.15
Typ.
100
5.8
4.1
5.7
3.9
60
16
5
8
4
DD
= 3.3V, V
Max.
Max.
2.55
1.24
1.18
0.25
0.56
200
100
150
6.5
6.5
6.5
1.2
1.5
0.1
3.2
6.2
4.4
6.2
4.3
10
90
12
24
10
1
ST8024
DDP
mV/K
MHz
Unit
Unit
mA
mA
mV
mV
ms
µA
W
V
V
V
V
V
V
V
5/23
=