Datasheet

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STM32L432KB STM32L432KC Electrical characteristics
147
6.3.2 Operating conditions at power-up / power-down
The parameters given in Table 22 are derived from tests performed under the ambient
temperature condition summarized in Table 21.
6.3.3 Embedded reset and power control block characteristics
The parameters given in Table 23 are derived from tests performed under the ambient
temperature conditions summarized in Table 21: General operating conditions.
5. In low-power dissipation state, T
A
can be extended to this range as long as T
J
does not exceed T
Jmax
(see Section 7.2:
Thermal characteristics).
Table 22. Operating conditions at power-up / power-down
Symbol Parameter Conditions Min Max Unit
t
VDD
V
DD
rise time rate
-
0 
µs/V
V
DD
fall time rate 10 
t
VDDA
V
DDA
rise time rate
-
0 
V
DDA
fall time rate 10 
t
VDDUSB
V
DDUSB
rise time rate
-
0 
V
DDUSB
fall time rate 10 
Table 23. Embedded reset and power control block characteristics
Symbol Parameter Conditions
(1)
Min Typ Max Unit
t
RSTTEMPO
(2)
Reset temporization after
BOR0 is detected
V
DD
rising - 250 400 s
V
BOR0
(2)
Brown-out reset threshold 0
Rising edge 1.62 1.66 1.7
V
Falling edge 1.6 1.64 1.69
V
BOR1
Brown-out reset threshold 1
Rising edge 2.06 2.1 2.14
V
Falling edge 1.96 2 2.04
V
BOR2
Brown-out reset threshold 2
Rising edge 2.26 2.31 2.35
V
Falling edge 2.16 2.20 2.24
V
BOR3
Brown-out reset threshold 3
Rising edge 2.56 2.61 2.66
V
Falling edge 2.47 2.52 2.57
V
BOR4
Brown-out reset threshold 4
Rising edge 2.85 2.90 2.95
V
Falling edge 2.76 2.81 2.86
V
PVD0
Programmable voltage
detector threshold 0
Rising edge 2.1 2.15 2.19
V
Falling edge 2 2.05 2.1
V
PVD1
PVD threshold 1
Rising edge 2.26 2.31 2.36
V
Falling edge 2.15 2.20 2.25
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