STM32U545NET6QTR datasheet(36/283 Pages) STMICROELECTRONICS

部件名	STM32U545NET6QTR

功能描述	Ultra-low-power Arm® Cortex®-M33 MCUTrustZone®FPU,240 DMIPS, 512 KB flash memory, 274 KB SRAM, crypto

PDF	283 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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36 / 283 page

Functional overview

STM32U545xx

36/283

DS14216 Rev 1

3.9.3

Low-power modes

The ultra-low-power STM32U545xx devices support seven low-power modes to achieve the

best compromise between low-power consumption, short startup time, available peripherals

and available wake-up sources.

The table below details the related low-power modes.

Table 9. STM32U545xx mode overview

Mode

Regulator(1) CPU Flash SRAM Clocks

DMA and peripherals(2)

Wake-up source

Run

Range 1

Yes

ON(3)

Any

All

N/A

Range 2

Range 3

Range 4

All except USB

Sleep

Range 1

ON(4)

Any

All

Any interrupt or

event

Range 2

Range 3

Range 4

All except USB

Stop 0

Range 1

OFF

ON(5)

LSE

LSI

(6)

BOR, PVD, PVM,

RTC, TAMP, IWDG,

TEMP (temp. sensor),

VREFBUF,

ADC4(7),

DAC1 (2 channels)(8),

COMP1,

OPAMP1,

USARTx (x = 1, 3, 4, 5)(9),

LPUART1,

SPIx (x = 1...3)(10),

I2Cx (x = 1...4)(11),

LPTIMx (x = 1...4)(12),

MDF1(13), ADF1,

GPIO, LPGPIO,

GPDMA1(14), LPDMA1

All other peripherals are frozen.

Reset pin, all I/Os,

BOR, PVD, PVM,

RTC, TAMP, IWDG,

TEMP,

ADC4,

DAC1 (2 channels),

COMP1,

USARTx

(x = 1, 3, 4, 5),

LPUART1,

SPIx (x = 1...3),

I2Cx (x = 1...4),

LPTIMx (x = 1...4),

MDF1, ADF1,

GPDMA1,

LPDMA1,

USB

Range 2

Range 3

Range 4

Stop 1

LPR

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