STM32F3xx microcontroller low-power overview

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Standby mode

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The lowest power consumption.

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The 1.8V domain is powered off (regulator is disabled).

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SRAM and register contents are lost except in the backup domain.

disabled and the 1.8 V domain is powered off. SRAM and register contents are lost except

for the registers in the Backup domain (RTC registers, RTC backup register and backup

SRAM), and Standby circuitry.

Note:

Standby mode is not available in devices where the internal regulator is OFF.

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Vbat mode:

–

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supply voltage (a battery or any other source).

registers, RTC backup register and backup SRAM).

Note:

For a further description of these low-power mode features and low-power technology of

STM32F3xxxx devices, you can refer to the RM00313, RM0316, RM0364, RM0365,

RM0366 reference manuals and the relevant datasheets available from the

STMicroelectronics web site.

1.3

Wake up from low-power modes

STM32F3xxxx devices integrate many wakeup sources to offer a flexible power

management in a low-power application development and to simplify the application design.

Many I/O pins allow to use these different wakeup sources.

Table 3 describes the different wakeup sources and pins that can be available in

STM32F3xxxx devices.