STM32L053 datasheet(60/132 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L053x6 STM32L053x8

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DocID025844 Rev 7

Table 28. Current consumption in Run mode, code with data processing running from Flash

Symbol

Parameter

Conditions

fHCLK

Typ

Max(1)

Unit

IDD

(Run

from

Flash)

Supply

current in

Run mode,

code

executed

from Flash

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

165

230

µA

2 MHz

290

360

4 MHz

555

630

Range 2, VCORE=1.5 V,

VOS[1:0]=10,

4 MHz

0.665

0.74

8 MHz

1.3

1.4

16 MHz

2.6

2.8

Range 1, VCORE=1.8 V,

VOS[1:0]=01

8 MHz

1.55

1.7

16 MHz

3.1

3.4

32 MHz

6.3

6.8

MSI clock

Range 3, VCORE=1.2 V,

VOS[1:0]=11

65 kHz

36.5

110

µA

524 kHz

99.5

190

4.2 MHz

620

700

HSI clock

Range 2, VCORE=1.5 V,

VOS[1:0]=10,

16 MHz

2.6

2.9

Range 1, VCORE=1.8 V,

VOS[1:0]=01

32 MHz

6.25

1. Guaranteed by characterization results at 125 °C, unless otherwise specified.

2. Oscillator bypassed (HSEBYP = 1 in RCC_CR register).

Table 29. Current consumption in Run mode vs code type,

code with data processing running from Flash

Symbol

Parameter

Conditions

fHCLK

Typ

Unit

IDD

(Run

from

Flash)

Supply

current in

Run mode,

code

executed

from Flash

fHSE = fHCLK up to

16 MHz included,

fHSE = fHCLK/2 above

16 MHz (PLL ON)(1)

Range 3,

VCORE=1.2 V,

VOS[1:0]=11

Dhrystone

4 MHz

555

µA

CoreMark

585

Fibonacci

440

while(1)

355

while(1), prefetch

OFF

353

Range 1,

VCORE=1.8 V,

VOS[1:0]=01

Dhrystone

32 MHz

6.3

CoreMark

6.3

Fibonacci

6.55

while(1)

5.4

while(1), prefetch

OFF

5.2

1. Oscillator bypassed (HSEBYP = 1 in RCC_CR register).

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