Operating Conditions At Power-Up / Power-Down; Embedded Reset And Power Control Block Characteristics; Table 22. Operating Conditions At Power-Up / Power-Down; Table 23. Embedded Reset And Power Control Block Characteristics - STMicroelectronics STM32F042G4 Manual

Electrical characteristics
6.3.2

Operating conditions at power-up / power-down

The parameters given in
temperature condition summarized in
Symbol
t
VDD
t
VDDA
6.3.3

Embedded reset and power control block characteristics

The parameters given in
temperature and supply voltage conditions summarized in
conditions.
Symbol
V
POR/PDR
V
PDRhyst
t
RSTTEMPO
1. The PDR detector monitors V
monitors only V
2. The product behavior is guaranteed by design down to the minimum V
3. Data based on characterization results, not tested in production.
4. Guaranteed by design, not tested in production.
Symbol
V
PVD0
V
PVD1
V
PVD2
V
PVD3
50/117
Table 22

Table 22. Operating conditions at power-up / power-down

Parameter
V rise time rate
DD
V fall time rate
DD
V rise time rate
DDA
V fall time rate
DDA
Table 23

Table 23. Embedded reset and power control block characteristics

Parameter
Power on/power down
(1)
reset threshold
PDR hysteresis
(4)
Reset temporization
and also V
DD
.
DD

Table 24. Programmable voltage detector characteristics

Parameter
PVD threshold 0
PVD threshold 1
PVD threshold 2
PVD threshold 3
DocID025832 Rev 2
are derived from tests performed under the ambient
Table 21.
Conditions
-
-
are derived from tests performed under the ambient
Conditions
(2)
Falling edge
Rising edge
(if kept enabled in the option bytes). The POR detector
DDA
Conditions
Rising edge
Falling edge
Rising edge
Falling edge
Rising edge
Falling edge
Rising edge
Falling edge
STM32F042xx
Min Max

0

20

0

20
Table 21: General operating
Min Typ Max
1.80 1.88
1.96
(3)
1.84 1.92 2.00
- 40 -
1.50 2.50 4.50
value.
POR/PDR
Min Typ Max
2.1 2.18 2.26
2 2.08 2.16
2.19 2.28 2.37
2.09 2.18 2.27
2.28 2.38 2.48
2.18 2.28 2.38
2.38 2.48 2.58
2.28 2.38 2.48
Unit
μs/V
Unit
(3)
V
V
mV
ms
Unit
V
V
V
V
V
V
V
V