STM32F031X4 datasheet(48/106 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F031x4 STM32F031x6

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DocID025743 Rev 4

I/O system current consumption

The current consumption of the I/O system has two components: static and dynamic.

I/O static current consumption

All the I/Os used as inputs with pull-up generate current consumption when the pin is

externally held low. The value of this current consumption can be simply computed by using

the pull-up/pull-down resistors values given in Table 46: I/O static characteristics.

For the output pins, any external pull-down or external load must also be considered to

estimate the current consumption.

Additional I/O current consumption is due to I/Os configured as inputs if an intermediate

voltage level is externally applied. This current consumption is caused by the input Schmitt

Table 27. Typical current consumption, code executing from Flash memory,

running from HSE 8 MHz crystal

Symbol

Parameter

fHCLK

Typical run mode

Typical Sleep mode

unit

Peripheral

s enabled

Peripheral

s disabled

Peripheral

s enabled

Peripheral

s disabled

IDD

Current

from VDD

supply

48MHz

20.2

12.3

11.1

2.9

36 MHz

15.3

9.5

8.4

2.4

32 MHz

13.6

8.6

7.5

2.2

24 MHz

10.5

6.7

5.9

1.8

16 MHz

7.2

4.7

4.1

1.4

8 MHz

3.8

2.7

2.3

0.9

4 MHz

2.4

1.8

1.7

0.9

2 MHz

1.6

1.3

1.2

0.8

1 MHz

1.2

1.1

1.0

0.8

500 kHz

1.0

0.9

0.8

IDDA

Current

from VDDA

supply

48MHz

155

36 MHz

117

32 MHz

105

24 MHz

16 MHz

8 MHz

2.2

4 MHz

2.2

2 MHz

2.2

1 MHz

2.2

500 kHz

2.2

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