STM32F102XB datasheet(36/76 Pages) STMICROELECTRONICS

36 / 76 page

Electrical characteristics

STM32F102x8, STM32F102xB

36/76

Doc ID 15056 Rev 4

Typical current consumption

The MCU is placed under the following conditions:

●

All I/O pins are in input mode with a static value at VDD or VSS (no load)

●

All peripherals are disabled except if it is explicitly mentioned

●

The Flash access time is adjusted to fHCLK frequency (0 wait state from 0 to 24 MHz, 1

wait state from 24 to 48 MHz)

●

Prefetch is on (reminder: this bit must be set before clock setting and bus prescaling)

●

When the peripherals are enabled fPCLK1 = fHCLK/4, fPCLK2 = fHCLK/2, fADCCLK =

fPCLK2/4

The parameters given in Table 16 are derived from tests performed under ambient

temperature and VDD supply voltage conditions summarized in Table 8.

Table 16.

Typical current consumption in Run mode, code with data processing

running from Flash

Symbol

Parameter

Conditions

fHCLK

Typ(1)

Typical values are measures at TA = 25 °C, VDD = 3.3 V.

Typ(1)

Unit

All peripherals

enabled(2)

Add an additional power consumption of 0.8 mA per ADC for the analog part. In applications, this

consumption occurs only while the ADC is on (ADON bit is set in the ADC_CR2 register).

All peripherals

disabled

IDD

Supply

current in

Run mode

External

clock(3)

External clock is 8 MHz and PLL is on when fHCLK > 8 MHz.

48 MHz

24.2

18.6

36 MHz

14.8

24 MHz

12.9

10.1

16 MHz

9.3

7.4

8 MHz

5.5

4.6

4 MHz

3.3

2.8

2 MHz

2.2

1.9

1 MHz

1.6

1.45

500 kHz

1.3

1.25

125 kHz

1.08

1.06

Running on

high speed

internal RC

(HSI), AHB

prescaler

used to

reduce the

frequency

48 MHz

23.5

17.9

36 MHz

18.3

14.1

24 MHz

12.2

9.5

16 MHz

8.5

6.8

8 MHz

4.9

4 MHz

2.7

2.2

2 MHz

1.6

1.4

1 MHz

1.02

0.9

500 kHz

0.73

0.67

125 kHz

0.5

0.48

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