STM32G47PBY6TR datasheet(112/229 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32G473xB STM32G473xC STM32G473xE

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DS12712 Rev 3

5.3.6

Wakeup time from low-power modes and voltage scaling

transition times

The wakeup times given in Table 36 are the latency between the event and the execution of

the first user instruction.

The device goes in low-power mode after the WFE (Wait For Event) instruction.

Table 36. Low-power mode wakeup timings(1)

Symbol

Parameter

Conditions

Typ

Max

Unit

tWUSLEEP

Wakeup time from Sleep

mode to Run mode

Nb of

CPU

cycles

tWULPSLEEP

Wakeup time from Low-

power sleep mode to Low-

power run mode

tWUSTOP0

Wake up time from Stop 0

mode to Run mode in Flash

Range 1

Wakeup clock HSI16 = 16 MHz

5.8

µs

Range 2

Wakeup clock HSI16 = 16 MHz 18.4

19.1

Wake up time from Stop 0

mode to Run mode in

SRAM1

Range 1

Wakeup clock HSI16 = 16 MHz

2.8

Range 2

Wakeup clock HSI16 = 16 MHz

2.9

tWUSTOP1

Wake up time from Stop 1

mode to Run in Flash

Range 1

Wakeup clock HSI16 = 16 MHz

9.5

9.8

Range 2

Wakeup clock HSI16 = 16 MHz 21.9

22.7

Wake up time from Stop 1

mode to Run mode in

SRAM1

Range 1

Wakeup clock HSI16 = 16 MHz

6.6

6.9

Range 2

Wakeup clock HSI16 = 16 MHz

6.4

6.6

Wake up time from Stop 1

mode to Low-power run

mode in Flash

Regulator in

low-power

mode (LPR=1

in PWR_CR1)

Wakeup clock

HSI16 = 16 MHz,

with HPRE = 8

26.1

27.1(2)

Wake up time from Stop 1

mode to Low-power run

mode in SRAM1

14.4

15(2)

tWUSTBY

Wakeup time from Standby

mode to Run mode

Range 1

Wakeup clock HSI16 = 16 MHz

29.7

33.8

tWUSTBY

SRAM2

Wakeup time from Standby

with SRAM2 to Run mode

Range 1

Wakeup clock HSI16 = 16 MHz

29.7

33.5

tWUSHDN

Wakeup time from

Shutdown mode to Run

mode

Range 1

Wakeup clock HSI16 = 16 MHz 267.9 274.6(2)

tWULPRUN

Wakeup time from Low-

power run mode to Run

mode(3)

Wakeup clock HSI16 = 16 MHz

with HPRE = 8

1. Guaranteed by characterization results.

2. Characterization results for temperature range from 0°C to 125°C

3. Time until REGLPF flag is cleared in PWR_SR2.

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