STM32F042F4 datasheet(50/117 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F042x4 STM32F042x6

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DocID025832 Rev 5

Typical and maximum current consumption

The MCU is placed under the following conditions:

•

All I/O pins are in analog input mode

•

All peripherals are disabled except when explicitly mentioned

•

The Flash memory access time is adjusted to the fHCLK frequency:

–

0 wait state and Prefetch OFF from 0 to 24 MHz

–

1 wait state and Prefetch ON above 24 MHz

•

When the peripherals are enabled fPCLK = fHCLK

The parameters given in Table 26 to Table 28 are derived from tests performed under

ambient temperature and supply voltage conditions summarized in Table 21: General

operating conditions

Table 26. Typical and maximum current consumption from VDD supply at VDD = 3.6 V

Conditions

fHCLK

All peripherals enabled(1)

All peripherals disabled

Unit

Typ

Max @ TA

(2)

Typ

Max @ TA

(2)

25 °C

85 °C

105 °C

25 °C

85 °C

105 °C

IDD

HSI48

48 MHz

20.3

23.2

23.4

24.6

12.7

14.4

14.7

HSE bypass,

PLL on

48 MHz

20.2

22.9

23.0

23.9

12.6

14.1

14.3

14.4

32 MHz

14.0

16.0

16.1

16.7

8.7

9.5

9.7

10.3

24 MHz

11.0

13.5

13.7

13.8

6.9

7.6

7.8

8.2

HSE bypass,

PLL off

8 MHz

3.9

5.2

5.3

5.6

2.6

3.1

3.2

3.3

1 MHz

0.9

1.3

1.5

1.8

0.7

1.0

1.1

1.3

HSI clock,

PLL on

48 MHz

20.5

23.1

23.3

23.6

12.8

14.6

15.0

32 MHz

14.3

15.6

15.9

17.0

8.6

9.5

9.7

10.0

24 MHz

11.2

13.6

13.8

14.8

6.9

7.4

7.5

7.7

HSI clock,

PLL off

8 MHz

4.1

5.2

5.3

5.6

2.6

3.1

3.3

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