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STM1404ATOHQ6F

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Typical operating characteristics STM1404
22/36
Figure 22. V
CC
to reset propagation delay vs. temperature
Figure 23. Maximum transient duration vs. reset threshold overdrive
0
10
20
30
40
50
60
–60 –40 –20 0 20 40 60 80 100
TEMPERATURE [°C]
PROPAGATION DELAY [µs]
10V/ms
1V/ms
0.25V/ms
AI09155
0
50
100
150
200
250
1 10 100 1000 10000
RESET COMPARATOR OVERDRIVE, V
RST
– V
CC
[mV]
TRANSIENT DURATION [µs]
AI09156
STM1404 Maximum ratings
23/36
6 Maximum ratings
Stressing the device above the rating listed in the absolute maximum ratings table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 4. Absolute maximum ratings
Symbol Parameter Value Unit
T
STG
Storage temperature (V
CC
off, V
BAT
off) –55 to 150 °C
T
SLD
(1)
1. Reflow at peak temperature of 255°C to 260°C for < 30 seconds (total thermal budget not to exceed 180°C
for between 90 to 150 seconds).
Lead solder temperature for 10 seconds 260 °C
V
IO
Input or output voltage –0.3 to V
CC
+0.3 V
V
CC
/V
BAT
Supply voltage –0.3 to 4.5 V
I
O
Output current 20 mA
P
D
Power dissipation 320 mW
DC and AC parameters STM1404
24/36
7 DC and AC parameters
This section summarizes the operating measurement conditions, and the DC and AC
characteristics of the device. The parameters in the DC and AC characteristics tables that
follow, are derived from tests performed under the measurement conditions summarized in
Table 5: Operating and AC measurement conditions. Designers should check that the
operating conditions in their circuit match the operating conditions when relying on the
quoted parameters.
Figure 24. AC testing input/output waveforms
Figure 25. MR
timing waveform
Table 5. Operating and AC measurement conditions
Parameter STM1404 Unit
V
CC
/V
BAT
supply voltage 2.2 to 3.6 V
Ambient operating temperature (T
A
)–40 to 85°C
Input rise and fall times ≤ 5ns
Input pulse voltages 0.2 to 0.8V
CC
V
Input and output timing ref. voltages 0.3 to 0.7V
CC
V
AI02568
0.8V
CC
0.2V
CC
0.7V
CC
0.3V
CC
AI09694
RST
MR
tMLRL
trec
tMLMH
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STM1404ATOHQ6F

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Manufacturer:
STMicroelectronics
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Supervisory Circuits 3V FIPS 140 Security supervisor
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