STM32WLE4JC datasheet(94/146 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32WLE5/E4xx

94/146

DS13105 Rev 9

Table 54. Low-power mode wakeup timings(1)

Symbol

Parameter

Conditions

Typ

Max

Unit

tWUSLEEP

Wakeup time from

Sleep to Run mode

0.188 0.222

µs

tWULPSLEEP

Wakeup time from

LPSleep to LPRun

mode

Wakeup in Flash with memory in power-down

during LPSleep mode (FPDS = 1 in PWR_CR1)

and with clock MSI = 2 MHz

3.81

4.38

tWUSTOP0

Wakeup time from

Stop 0 mode in Flash

memory(2)

To Run mode

(Range 1)

Wakeup clock MSI = 48 MHz

2.14

2.90

µs

Wakeup clock MSI = 16 MHz

2.78

3.58

Wakeup clock HSI16 = 16 MHz

1.99

Wakeup clock HSI16 = 16 MHz

with HSIKERON enabled

1.01

1.13

Wakeup clock MSI = 4 MHz

6.79

8.21

Wakeup clock MSI = 2 MHz

10.4

12.2

To LPRun mode Wakeup clock MSI = 2 MHz

10.5

12.3

tWUSTOP1

Wakeup time from

Stop 1 mode in Flash

memory(2)

To Run mode

(Range 1)

Wakeup clock MSI = 48 MHz

5.15

6.55

µs

Wakeup clock MSI = 16 MHz

5.73

7.14

Wakeup clock HSI16 = 16 MHz

5.71

7.10

Wakeup clock HSI16 = 16 MHz

with HSIKERON enabled

4.57

6.52

Wakeup clock MSI = 4 MHz

8.43

9.93

Wakeup clock MSI = 2 MHz

11.9

13.7

To LPRun mode Wakeup clock MSI = 2 MHz

10.6

13.9

tWUSTOP2

Wakeup time from

Stop 2 mode in Flash

memory(2)

To Run mode

(Range 1)

Wakeup clock MSI = 48 MHz

5.56

6.85

µs

Wakeup clock MSI = 16 MHz

6.32

7.59

Wakeup clock HSI16 = 16 MHz

6.28

7.51

Wakeup clock HSI16 = 16 MHz

with HSIKERON enabled

6.26

7.53

Wakeup clock MSI = 4 MHz

9.69

10.9

Wakeup clock MSI = 2 MHz

14.0

15.4

tWUSTBY

Wakeup time from

Standby to Run mode

Range 1

Wakeup clock MSI = 4 MHz

34.3

39.2

µs

Wakeup clock MSI = 8 MHz

22.4

25.6

tWUSHUTD

Wakeup time from

Shutdown to Run mode

Range 1

Wakeup clock MSI = 4 MHz

264

316

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

2. Wakeup time is equivalent when code is executed from SRAM1 compared to Flash memory. It is also equivalent when

going to Range 2 rather than Range 1.

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