STM32L052C8 datasheet(63/136 Pages) STMICROELECTRONICS

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DocID025936 Rev 6

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STM32L052x6 STM32L052x8

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110

Table 31. 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

135

170

µA

2 MHz

240

270

4 MHz

450

480

Range 2,

VCORE=1.5 ,V,

VOS[1:0]=10

4 MHz

0.52

0.6

8 MHz

1.2

16 MHz

2.3

Range 1,

VCORE=1.8 V,

VOS[1:0]=01

8 MHz

1.25

1.4

16 MHz

2.45

2.8

32 MHz

5.1

5.4

MSI clock

Range 3,

VCORE=1.2 V,

VOS[1:0]=11

65 kHz

34.5

µA

524 kHz

120

4.2 MHz

485

540

HSI16 clock source

(16 MHz)

Range 2,

VCORE=1.5 V,

VOS[1:0]=10

16 MHz

2.1

2.3

Range 1,

VCORE=1.8 V,

VOS[1:0]=01

32 MHz

5.1

5.6

Guaranteed by characterization results

at 125 °C, unless otherwise specified.

Oscillator bypassed (HSEBYP = 1 in RCC_CR register).

Table 32. 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

450

µA

CoreMark

575

Fibonacci

370

while(1)

340

Range 1,

VCORE=1.8 V,

VOS[1:0]=01

Dhrystone

32 MHz

5.1

CoreMark

6.25

Fibonacci

4.4

while(1)

4.7

Guaranteed by characterization results, unless otherwise specified.

Oscillator bypassed (HSEBYP = 1 in RCC_CR register).

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