STM32L452CEU6 datasheet(107/210 Pages) STMICROELECTRONICS

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STM32L452xx

Electrical characteristics

186

Table 38. Typical current consumption in Run modes, with different codesrunning from

Flash, ART disable and power supplied by external SMPS (VDD12 = 1.05 V)

Symbol

Parameter

Conditions(1)

TYP

Unit

TYP

Unit

Voltage

scaling

Code

25 °C

IDD_ALL

(Run)

Supply

current in

Run mode

fHCLK = fHSE up to

48 MHz included,

bypass mode

PLL ON above

48 MHz

all peripherals

Reduced code(2)

1.08

µA/MHz

Coremark

0.98

Dhrystone 2.1

0.98

Fibonacci

0.90

While(1)

0.86

1. All values are obtained by calculation based on measurements done without SMPS and using following parameters: SMPS

input = 3.3 V, SMPS efficiency = 85%, VDD12 = 1.05 V

2. Reduced code used for characterization results provided in Table 27, Table 29, Table 31.

Table 39. Typical current consumption in Run and Low-power run modes, with different codes

running from SRAM1

Symbol

Parameter

Conditions

TYP

Unit

TYP

Unit

Voltage

scaling

Code

25 °C

IDD_ALL

(Run)

Supply

current in

Run mode

fHCLK = fHSE up to

48 MHz included,

bypass mode

PLL ON above

48 MHz all

peripherals

disable

Reduced code(1)

2.40

µA/MHz

Coremark

2.20

Dhrystone 2.1

2.35

Fibonacci

2.20

While(1)

2.30

Reduced code(1)

8.55

107

µA/MHz

Coremark

7.75

Dhrystone 2.1

8.45

106

Fibonacci

7.80

While(1)

8.75

109

IDD_ALL

(LPRun)

Supply

current in

Low-power

run

fHCLK = fMSI = 2 MHz

all peripherals disable

Reduced code(1)

220

µA

110

µA/MHz

Coremark

190

Dhrystone 2.1

215

108

Fibonacci

200

100

While(1)

210

105

1. Reduced code used for characterization results provided in Table 27, Table 29, Table 31.

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