STM32H7B3II datasheet(105/238 Pages) STMICROELECTRONICS

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Peripheral

IDD(Typ)

Unit

VOS0

VOS1

VOS2

VOS3

APB4

Bridge

µA/MHz

0.10

Table 45. Peripheral current consumption in Stop, Standby and VBAT mode

Symbol

Parameter

Conditions

Typ

Max (3.6 V)

Unit

3.3 V TJ = 25 °C TJ= 85 °C TJ = 105 °C TJ = 130 °C

IDD

RTC+LSE low drive

0.77

1.0

1.2

1.3

2.0

µA

RTC+LSE medium- low drive

0.87

1.1

1.3

1.4

2.1

RTC+LSE medium- high drive

1.03

1.3

1.5

1.6

2.3

RTC+LSE High drive

1.38

1.6

1.8

1.9

2.6

Backup SRAM

1.10

1.4

2.0

3.2

7.0

6.3.8

Wakeup time from low-power modes

The wakeup times given in Table 46. Low-power mode wakeup timings 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 (PC1) 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 46. Low-power mode wakeup timings

Symbol

Parameter

Conditions

Typ(1) Max(1)(2)

Unit

tWUSLEEP(3)

Wakeup from Sleep

5.00

CPU clock

cycles

tWUDSTOP(3)

Wakeup from DStop

SVOS3 Main, HSI, flash memory in normal mode

4.2

µs

SVOS3 Main, HSI, flash memory in low-power mode

8.3

SVOS3 LP, HSI, flash memory in normal mode

5.0

SVOS3 LP, HSI, flash memory in low-power mode

9.0

SVOS4, HSI, flash memory in normal mode

15.7

SVOS4, HSI, flash memory in low-power mode

19.7

SVOS5, HSI, flash memory in normal mode

35.0

SVOS5, HSI, flash memory in low-power mode

35.0

SVOS3 Main, CSI, flash memory in normal mode

42.5

SVOS3 Main, CSI, flash memory in low power mode

48.0

SVOS3 LP, CSI, flash memory in normal mode

43.3

SVOS3 LP, CSI, flash memory in low power mode

48.8

SVOS4, CSI, flash memory in normal mode

54.0

SVOS4, CSI, flash memory in low-power mode

59.5

SVOS5, CSI, flash memory in normal mode

74.8

SVOS5, CSI, flash memory in low-power mode

74.8

tWUDSTOP2(3)

Wakeup from DStop2, clock kept

running

SVOS3 LP, HSI, flash memory in low-power mode

9.7

SVOS4, HSI, flash memory in low-power mode

20.4

SVOS5, HSI, flash memory in low-power mode

35.7

STM32H7B3xI

Operating conditions

DS13139 - Rev 8

page 105/238

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