STM32L151CBU6TTR データシートの表示（PDF） - STMicroelectronics

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STM32L151CBU6TTR

Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC

STMicroelectronics 

STM32L151x6/8/B STM32L152x6/8/B

Electrical characteristics

6.3.5

Wakeup time from Low power mode

The wakeup times given in the following table are measured with the MSI RC oscillator. The

clock source used to wake up the device depends on the current operating mode:

• Sleep mode: the clock source is the clock that was set before entering Sleep mode

• Stop mode: the clock source is the MSI oscillator in the range configured before

entering Stop mode

• Standby mode: the clock source is the MSI oscillator running at 2.1 MHz

All timings are derived from tests performed under ambient temperature and VDD supply

voltage conditions summarized in Table 13.

Symbol

Table 25. Low-power mode wakeup timings

Parameter

Conditions

Typ Max(1) Unit

tWUSLEEP

tWUSLEEP_LP

tWUSTOP

tWUSTDBY

Wakeup from Sleep mode

Wakeup from Low power

sleep mode

fHCLK = 262 kHz

fHCLK = 32 MHz

fHCLK = 262 kHz

Flash enabled

fHCLK = 262 kHz

Flash switched OFF

0.36 -

32

-

34

-

Wakeup from Stop mode,

regulator in Run mode

fHCLK = fMSI = 4.2 MHz

8.2

-

fHCLK = fMSI = 4.2 MHz

Voltage Range 1 and 2

8.2

9.3

fHCLK = fMSI = 4.2 MHz

Voltage Range 3

7.8 11.2 µs

Wakeup from Stop mode, fHCLK = fMSI = 2.1 MHz 10

12

regulator in low power

mode

fHCLK = fMSI = 1.05 MHz 15.5 20

fHCLK = fMSI = 524 kHz

29

35

fHCLK = fMSI = 262 kHz

53

63

fHCLK = fMSI = 131 kHz 105 118

fHCLK = MSI = 65 kHz

210 237

Wakeup from Standby

mode

FWU bit = 1

fHCLK = MSI = 2.1 MHz 50 103

Wakeup from Standby

mode

FWU bit = 0

fHCLK = MSI = 2.1 MHz 2.5 3.2 ms

1. Guaranteed by characterization results, unless otherwise specified

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