Datasheet

Electrical characteristics STM32L476xx
120/270 DS10198 Rev 8
The requirements for power-up/down sequence specified in Section 3.9.1: Power supply
schemes must be respected.
6.3.3 Embedded reset and power control block characteristics
The parameters given in Table 25 are derived from tests performed under the ambient
temperature conditions summarized in Table 23: General operating conditions.
t
VDDIO2
V
DDIO2
rise time rate
-
0 
µs/V
V
DDIO2
fall time rate 10 
1. At power-up, the V
DD12
voltage should not be forced externally.
Table 24. Operating conditions at power-up / power-down
(1)
(continued)
Symbol Parameter Conditions Min Max Unit
Table 25. 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
V
PVD2
PVD threshold 2
Rising edge 2.41 2.46 2.51
V
Falling edge 2.31 2.36 2.41
V
PVD3
PVD threshold 3
Rising edge 2.56 2.61 2.66
V
Falling edge 2.47 2.52 2.57
V
PVD4
PVD threshold 4
Rising edge 2.69 2.74 2.79
V
Falling edge 2.59 2.64 2.69
V
PVD5
PVD threshold 5
Rising edge 2.85 2.91 2.96
V
Falling edge 2.75 2.81 2.86
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