STM32WB55 datasheet(96/193 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32WB55xx STM32WB35xx

96/193

DS11929 Rev 11

6.3.5

Operating conditions at power-up / power-down

The parameters given in Table 34 are derived from tests performed under the ambient

temperature condition summarized in Table 24.

6.3.6

Embedded reset and power control block characteristics

The parameters given in Table 35 are derived from tests performed under the ambient

temperature conditions summarized in Table 24: General operating conditions.

Table 34. Operating conditions at power-up / power-down

Symbol

Parameter

Conditions

Min

Max

Unit

tVDD

VDD rise time rate

∞

µs/V

VDD fall time rate

∞

tVDDA

VDDA rise time rate

∞

VDDA fall time rate

∞

tVDDUSB

VDDUSB rise time rate

∞

VDDUSB fall time rate

∞

tVDDRF

VDDRF rise time rate

∞

VDDRF fall time rate

∞

Table 35. Embedded reset and power control block characteristics

Symbol

Parameter

Conditions(1)

Min

Typ

Max

Unit

tRSTTEMPO(2)

Reset temporization after BOR0 is detected VDD rising

250

400

μs

VBOR0(2)

Brown-out reset threshold 0

Rising edge

1.62

1.66

1.70

Falling edge

1.60

1.64

1.69

VBOR1

Brown-out reset threshold 1

Rising edge

2.06

2.10

2.14

Falling edge

1.96

2.00

2.04

VBOR2

Brown-out reset threshold 2

Rising edge

2.26

2.31

2.35

Falling edge

2.16

2.20

2.24

VBOR3

Brown-out reset threshold 3

Rising edge

2.56

2.61

2.66

Falling edge

2.47

2.52

2.57

VBOR4

Brown-out reset threshold 4

Rising edge

2.85

2.90

2.95

Falling edge

2.76

2.81

2.86

VPVD0

Programmable voltage detector threshold 0

Rising edge

2.10

2.15

2.19

Falling edge

2.00

2.05

2.10

VPVD1

PVD threshold 1

Rising edge

2.26

2.31

2.36

Falling edge

2.15

2.20

2.25

VPVD2

PVD threshold 2

Rising edge

2.41

2.46

2.51

Falling edge

2.31

2.36

2.41

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