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; Table 24. Programmable Voltage Detector Characteristics - STMicroelectronics STM32F042F4 Manual

Electrical characteristics
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
V
PVD4
V
PVD5
48/117

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
PVD threshold 4
PVD threshold 5
DocID025832 Rev 5
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
Rising edge
Falling edge
Rising edge
Falling edge
STM32F042x4 STM32F042x6
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
2.47 2.58 2.69
2.37 2.48 2.59
2.57 2.68 2.79
2.47 2.58 2.69
Unit
µs/V
Unit
(3)
V
V
mV
ms
Unit
V
V
V
V
V
V
V
V
V
V
V
V