STM32F779IGH7 datasheet(139/255 Pages) STMICROELECTRONICS

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STM32F777xx STM32F778Ax STM32F779xx

Electrical characteristics

224

5.3.8

Wakeup time from low-power modes

The wakeup times given in Table 40 are measured starting from the wakeup event trigger up

to the first instruction executed by the CPU:

•

For Stop or Sleep modes: the wakeup event is WFE.

•

WKUP (PA0) pin is used to wakeup from Standby, Stop and Sleep modes.

All timings are derived from tests performed under ambient temperature and VDD=3.3 V.

Table 40. Low-power mode wakeup timings

Symbol

Parameter

Conditions

Typ(1)

Max(1)

Unit

tWUSLEEP(2) Wakeup from Sleep

CPU

clock

cycles

tWUSTOP(2)

Wakeup from Stop mode

with MR/LP regulator in

normal mode

Main regulator is ON

14.9

Main regulator is ON and Flash

memory in Deep power down mode

104.1

107.6

Low power regulator is ON

21.4

24.2

Low power regulator is ON and Flash

memory in Deep power down mode

111.5

116.5

tWUSTOP(2)

Wakeup from Stop mode

with MR/LP regulator in

Under-drive mode

Main regulator in under-drive mode

(Flash memory in Deep power-down

mode)

107.4

113.2

Low power regulator in under-drive

mode

(Flash memory in Deep power-down

mode )

112.7

120

tWUSTDBY

(2)

Wakeup from Standby

mode

Exit Standby mode on rising edge

308

313

Exit Standby mode on falling edge

307

313

1. Guaranteed by characterization results.

2. The wakeup times are measured from the wakeup event to the point in which the application code reads the first

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