STM32L031X4 datasheet(58/118 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L031x4/6

58/118

DocID027063 Rev 4

Table 26. Current consumption in Run mode, code with data processing running from RAM

Symbol

Parameter

Conditions

fHCLK

Typ

Max(1)

Unit

IDD (Run

from

RAM)

Supply current in

Run mode, code

executed from

RAM, Flash

switched OFF

fHSE = fHCLK up to 16

MHz, included

fHSE = fHCLK/2 above

16 MHz

(PLL ON)(2)

Range 3,

VCORE=1.2 V,

VOS[1:0]=11

1 MHz

115

170

µA

2 MHz

210

250

4 MHz

385

420

Range 2,

VCORE=1.5 ,V,

VOS[1:0]=10

4 MHz

0.48

0.6

8 MHz

0.935

1.1

16 MHz

1.8

Range 1,

VCORE=1.8 V,

VOS[1:0]=01

8 MHz

1.1

1.3

16 MHz

2.1

2.3

32 MHz

4.5

4.7

MSI clock

Range 3,

VCORE=1.2 V,

VOS[1:0]=11

65 kHz

µA

524 kHz

70.5

4.2 MHz

420

450

HSI16 clock source

(16 MHz)

Range 2,

VCORE=1.5 V,

VOS[1:0]=10

16 MHz

1.95

2.2

Range 1,

VCORE=1.8 V,

VOS[1:0]=01

32 MHz

4.7

5.1

Guaranteed by characterization results

at 125 °C, unless otherwise specified.

Oscillator bypassed (HSEBYP = 1 in RCC_CR register).

Table 27. Current consumption in Run mode vs code type,

code with data processing running from RAM(1)

Symbol

Parameter

Conditions

fHCLK

Typ

Unit

IDD (Run

from

RAM)

Supply current in

Run mode, code

executed from

RAM, Flash

switched OFF

fHSE = fHCLK up to 16

MHz, included,

fHSE = fHCLK/2 above

16 MHz (PLL ON)(2)

Range 3,

VCORE=1.2 V,

VOS[1:0]=11

Dhrystone

4 MHz

385

µA

CoreMark

395

Fibonacci

360

while(1)

265

Range 1,

VCORE=1.8 V,

VOS[1:0]=01

Dhrystone

32 MHz

4.5

CoreMark

4.65

Fibonacci

4.2

while(1)

3.05

Guaranteed by characterization results, unless otherwise specified.

Oscillator bypassed (HSEBYP = 1 in RCC_CR register).

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