Datasheet

DS9118 Rev 14 61/149
STM32F303xB STM32F303xC Electrical characteristics
125
6.3.2 Operating conditions at power-up / power-down
The parameters given in Table 25 are derived from tests performed under the ambient
temperature condition summarized in Table 24.
6.3.3 Embedded reset and power control block characteristics
The parameters given in Table 26 are derived from tests performed under ambient
temperature and V
DD
supply voltage conditions summarized in Table 24.
Table 25. 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 20
∞
t
VDDA
V
DDA
rise time rate
-
0
∞
V
DDA
fall time rate 20
∞
Table 26. Embedded reset and power control block characteristics
Symbol Parameter Conditions Min Typ Max Unit
V
POR/PDR
(1)
1. The PDR detector monitors V
DD
and also V
DDA
(if kept enabled in the option bytes). The POR detector
monitors only V
DD
.
Power on/power down
reset threshold
Falling edge
1.8
(2)
2. The product behavior is guaranteed by design down to the minimum V
POR/PDR
value.
1.88 1.96 V
Rising edge 1.84 1.92 2.0 V
V
PDRhyst
(1)
PDR hysteresis - - 40 - mV
t
RSTTEMPO
(3)
3. Guaranteed by design.
POR reset
temporization
- 1.5 2.5 4.5 ms
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