STM32L431 datasheet(93/200 Pages) STMICROELECTRONICS

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Table 31. Current consumption in Sleep and Low-power sleep modes, Flash ON

Symbol

Parameter

Conditions

TYP

MAX(1)

Unit

Voltage

scaling

fHCLK

25 °C 55 °C 85 °C

105 °C 125 °C 25 °C

55 °C

85 °C 105 °C 125 °C

IDD(Sleep)

Supply

current in

sleep

mode,

fHCLK = fHSE up

to 48 MHz

included, bypass

mode

pll ON above

48 MHz all

peripherals

disable

Range 2

26 MHz

0.68

0.69

0.74

0.81

0.95

0.8

0.9

1.0

1.3

16 MHz

0.46

0.48

0.52

0.59

0.73

0.5

0.6

0.8

1.1

8 MHz

0.29

0.30

0.34

0.41

0.55

0.3

0.4

0.6

0.9

4 MHz

0.20

0.21

0.25

0.32

0.46

0.2

0.3

0.5

0.8

2 MHz

0.16

0.17

0.21

0.28

0.42

0.2

0.3

0.4

0.7

1 MHz

0.13

0.15

0.19

0.26

0.40

0.1

0.2

0.3

0.4

0.7

100 kHz

0.11

0.13

0.17

0.24

0.38

0.1

0.2

0.4

0.7

Range 1

80 MHz

2.23

2.25

2.30

2.38

2.54

2.5

2.6

2.8

3.1

72 MHz

2.02

2.04

2.10

2.18

2.34

2.2

2.3

2.4

2.5

2.9

64 MHz

1.82

1.84

1.89

1.98

2.14

2.0

2.1

2.3

2.6

48 MHz

1.34

1.36

1.42

1.50

1.66

1.5

1.6

1.7

1.8

2.2

32 MHz

0.93

0.95

1.01

1.09

1.25

1.1

1.2

1.4

1.7

24 MHz

0.73

0.75

0.80

0.88

1.04

0.8

0.9

1.0

1.1

1.4

16 MHz

0.53

0.55

0.60

0.68

0.84

0.6

0.7

0.9

1.2

IDD(LPSleep)

Supply

current in

low-power

sleep

mode

fHCLK = fMSI

all peripherals disable

2 MHz

71.8

80.7

125

200

350

91.1

122.7

191.3

341.5

653.5

µA

1 MHz

45.0

57.3

101

176

325

63.2

95.4

165.4

316.5

628.7

400 kHz

27.0

40.7

84.6

158

308

43.9

75.8

147.2

297.6

609.2

100 kHz

22.8

30.9

63.3

113.2

207.7

35.2

67.9

140.9

290.8

602.4

1. Guaranteed by characterization results, unless otherwise specified.

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