ST8024LTR Ver la hoja de datos (PDF) - STMicroelectronics
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ST8024LTR Datasheet PDF : 35 Pages
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Electrical characteristics
5
Electrical characteristics
ST8024L
Table 6. Electrical characteristics over recommended operating condition
Symbol
Parameter(1)
Test conditions
Min. Typ.
VDD Supply voltage
VDDP
Supply voltage for the
step-up converter
IDD
Supply current
VCC = 5 V; |ICC| < 80 mA
VCC = 3 V; |ICC| < 65 mA
VCC = 5 V; |ICC| < 20 mA
VCC = 3 V; |ICC| < 20 mA
VCC = 1.8 V; |ICC| < 20 mA
Card inactive
Card active; fCLK = fXTAL; CL = 30 pF
Inactive mode
2.7
4.0
5
4.0
5
3.0
2.7
2.7
IDDP
Step-up converter supply
current
Active mode; fCLK = fXTAL; CL = 30 pF;
|ICC| = 0
VCC = 5 V; |ICC| = 80 mA
VCC = 3 V; |ICC| = 65 mA
VCC = 1.8 V; |ICC| = 45 mA
Vth2
Falling threshold voltage No external resistors at pin PORADJ;
on VDD
VDD level falling. See Figure 4.
VHYS2
Hysteresis of threshold
voltage Vth2
No external resistors at pin PORADJ.
See Figure 4.
Vth(ext)rise
External rising threshold
voltage at pin PORADJ
External resistor divider at pin PORADJ;
VDD level rising. See Section 6.2.2.
Vth(ext)fall
External falling threshold External resistor divider at pin PORADJ;
voltage at pin PORADJ VDD level falling. See Section 6.2.2.
VHYS(ext)
Hysteresis of threshold
voltage Vth(ext)
External resistor divider at pin PORADJ.
See Section 6.2.2.
Hysteresis of threshold
ΔVHYS(ext) voltage Vth(ext) variation
with temperature
External resistor divider at pin PORADJ
50
50
30
2.35 2.45
50 100
1.17 1.20
1.11 1.14
30
60
No external resistor divider at pin
tW
Width of internal power- PORADJ
on reset pulse
4
8
External resistor divider at pin PORADJ
8
16
IL
Leakage current on pin
PORADJ
VPORADJ < 0.5 V
VPORADJ > 1.0 V
–0.1
4
–1
PTOT Total power dissipation Continuous operation; TA = –25 to 85 °C
1. VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are at TA = 25 °C.
Max. Unit
6.5 V
6.5
6.5
6.5 V
6.5
6.5
1.2
mA
1.5
0.1
10
mA
200
100
60
2.55 V
150 mV
1.23 V
1.17 V
90 mV
0.25 mV/K
12
ms
24
10
µA
1
0.56 W
10/35
Doc ID 17709 Rev 5
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