STM32L432KB STM32L432KC Electrical characteristics
Figure 20. Recommended NRST pin protection
External reset circuit
(1) V
DD
R
PU
NRST
(2)
Filter
Internal reset
0.1 μF
MS19878V3
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 60: 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 Extended interrupt and event controller input (EXTI) characteristics
The pulse on the interrupt input must have a minimal length in order to guarantee that it is detected by the event controller.
Symbol
Table 61. EXTI Input Characteristics (1)
Parameter
PLEC
Pulse length to event controller
1. Guaranteed by design.
Conditions
-
Min
20
Typ
-
Max
-
Unit ns
6.3.17 Analog switches booster
Symbol
Table 62. Analog switches booster characteristics (1)
Parameter
V
DD t
SU(BOOST)
Supply voltage
Booster startup time
I
DD(BOOST)
Booster consumption for
1.62 V ≤ V
DD
≤ 2.0 V
Booster consumption for
2.0 V ≤ V
DD
≤ 2.7 V
Booster consumption for
2.7 V ≤ V
DD
≤ 3 .6 V
1. Guaranteed by design.
Min
1.62
-
-
-
-
Typ
-
-
-
-
-
Max
3.6
240
250
500
900
Unit
V
µs
µA
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