Datasheet

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DocID027107 Rev 6 101/202

STM32F446xC/E Electrical characteristics

175

6.3.8 Wakeup time from low-power modes

The wakeup times given in Table 36 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 V

=3.3 V.

APB2

TIM1 17.51 16.28 14.43

µA/MHz

TIM8 18.40 17.10 15.22

USART1 4.53 4.21 3.72

USART6 4.53 4.21 3.72

ADC1 4.69 4.35 3.85

ADC2 4.70 4.35 3.87

ADC3 4.66 4.31 3.82

SDIO 9.06 8.38 7.47

SPI1 1.97 1.89 1.67

SPI4 1.88 1.75 1.57

SYSCFG 1.51 1.40 1.23

TIM9 8.17 7.64 6.77

TIM10 5.07 4.75 4.22

TIM11 5.37 5.06 4.50

SAI1 3.89 3.64 3.17

SAI2 3.74 3.49 3.10

Bus Matrix 8.15 8.10 7.13

1. N = Number of strean enable (1..8)

2. To enable an I2S peripheral, first set the I2SMOD bit and then the I2SE bit in the SPI_I2SCFGR register.

Table 35. Peripheral current consumption (continued)

Peripheral

(Typ Appli)

Unit

Scale 1 +

OverDrive

Scale 2 Scale 3

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