STM1404_08 Datasheet, PDF (19/35 Pages) STMicroelectronics – 3 V FIPS-140 security supervisor with battery switchover

STM1404
Typical operating characteristics
Figure 13. V_PFI threshold vs. temperature
1.255
1.250
1.245
1.240
V_CC = 3.3V
1.235
1.230
1.225
–50
–30
–10
V_CC = 2.5V
V_BAT = 3.0V
10
30
50
70
TEMPERATURE [°C]
90
110
130
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Figure 14. Reset comparator propagation delay vs. temperature
24
22
20
18
16
14
12
10
–60
–40
–20
V_BAT = 3.0V
100mV OVERDRIVE
0
20
40
60
TEMPERATURE [°C]
80
100
AI09143
Figure 15. Power-up t_rec vs. temperature
215 ₂₄
22
210 ₂₀
18
205 ₁₆
14
200 ₁₂
10
195 –60
–50
–40
–30
–20
–10
V_BAT = 3.0V
100mV OVERDRIVE
0
20
40
10 TEMP3E0RATURE5[0°C]
TEMPERATURE [°C]
60
70
Figure 16. Normalized reset threshold vs. temperature
80
90
100
110
130
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1.002
1.000
0.998
0.996
0.994
–60 –40 –20
V_BAT = 3.0V
0
20
40
60
80 100 120 140
TEMPERATURE [°C]
AI09145
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