STM32WB35CC datasheet(118/193 Pages) STMICROELECTRONICS

118 / 193 page

Electrical characteristics

STM32WB55xx STM32WB35xx

118/193

DS11929 Rev 11

tWUSTOP2

Wake up time from

Stop 2 mode



to Run mode in Flash

memory



SMPS bypassed

Range 1

Wakeup clock MSI = 32 MHz

5.27

6.07

µs

Wakeup clock HSI16 = 16 MHz

5.71

6.52

Range 2

Wakeup clock HSI16 = 16 MHz

5.72

6.52

Wakeup clock MSI = 4 MHz

9.10

9.93

Wake up time from

Stop 2 mode to Run

mode in SRAM1



SMPS bypassed

Range 1

Wakeup clock MSI = 32 MHz

5.20

5.94

Wakeup clock HSI16 = 16 MHz

5.64

6.42

Range 2

Wakeup clock HSI16 = 16 MHz

5.64

6.43

Wakeup clock MSI = 4 MHz

9.05

9.85

tWUSTBY

Wakeup time from

Standby mode



to Run mode



SMPS Bypassed

Range 1

Wakeup clock HSI16 = 16 MHz

51.0

58.1

µs

1. Guaranteed by characterization results (VDD = 3 V, .T = 25 °C).

Table 51. Low-power mode wakeup timings(1) (continued)

Symbol

Parameter

Conditions

Typ

Max

Unit

Table 52. Regulator modes transition times(1)

Symbol

Parameter

Conditions

Typ

Max

Unit

tWULPRUN

Wakeup time from Low-power run mode to

Run mode(2)

Code run with MSI 2 MHz

15.33

16.30

µs

tVOST

Regulator transition time from Range 2 to

Range 1 or Range 1 to Range 2(3)

Code run with HSI16

21.4

28.9

1. Guaranteed by characterization results (VDD = 3 V, T = 25 °C).

2. Time until REGLPF flag is cleared in PWR_SR2.

3. Time until VOSF flag is cleared in PWR_SR2.

Table 53. Wakeup time using USART/LPUART(1)

Symbol

Parameter

Conditions

Typ

Max

Unit

tWUUSART

tWULPUART

Wakeup time needed to calculate the maximum

USART/LPUART baud rate allowing to wakeup from

Stop modes when USART/LPUART clock source is

HSI16

Stop mode 0

1.7

µs

Stop mode 1/2

8.5

1. Guaranteed by design.

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