Datasheet

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STM32L431xx Electrical characteristics
168
Figure 29. Recommended NRST pin protection
1. The reset network protects the device against parasitic resets.
2. The user must ensure that the level on the NRST pin can go below the V
IL(NRST)
max level specified in
Table 62: NRST pin characteristics. Otherwise the reset will not be taken into account by the device.
3. The external capacitor on NRST must be placed as close as possible to the device.
6.3.16 Analog switches booster
069
5
38
9
''
,QWHUQDOUHVHW
([WHUQDO
UHVHWFLUFXLW

1567

)LOWHU
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Table 63. Analog switches booster characteristics
(1)
1. Guaranteed by design.
Symbol Parameter Min Typ Max Unit
V
DD
Supply voltage 1.62 - 3.6 V
t
SU(BOOST)
Booster startup time - - 240 µs
I
DD(BOOST)
Booster consumption for
1.62 V
 V
DD
 2.0 V
--250
µA
Booster consumption for
2.0 V
 V
DD
 2.7 V
--500
Booster consumption for
2.7 V
 V
DD
 3.6 V
--900
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