Information

Electrical characteristics STM32F105xx, STM32F107xx
44/104 DocID15274 Rev 7
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in Table 19. The MCU is placed
under the following conditions:
• all I/O pins are in input mode with a static value at V
DD
or V
SS
(no load)
• all peripherals are disabled unless otherwise mentioned
• the given value is calculated by measuring the current consumption
– with all peripherals clocked off
– with one peripheral clocked on (with only the clock applied)
• ambient operating temperature and V
DD
supply voltage conditions summarized in
Table 6
Table 18. Typical current consumption in Sleep mode, code running from Flash or
RAM
Symbol Parameter Conditions f
HCLK
Typ
(1)
1. Typical values are measures at T
A
= 25 °C, V
DD
= 3.3 V.
Unit
All peripherals
enabled
(2)
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
I
DD
Supply
current in
Sleep mode
External clock
(3)
3. External clock is 8 MHz and PLL is on when f
HCLK
> 8 MHz.
72 MHz 28.2 6
mA
48 MHz 19 4.2
36 MHz 14.7 3.4
24 MHz 10.1 2.5
16 MHz 6.7 2
8 MHz 3.2 1.3
4 MHz 2.3 1.2
2 MHz 1.7 1.16
1 MHz 1.5 1.1
500 kHz 1.3 1.05
125 kHz 1.2 1.05
Running on high
speed internal RC
(HSI), AHB prescaler
used to reduce the
frequency
36 MHz 13.7 2.6
24 MHz 9.3 1.8
16 MHz 6.3 1.3
8 MHz 2.7 0.6
4 MHz 1.6 0.5
2 MHz 1 0.46
1 MHz 0.8 0.44
500 kHz 0.6 0.43
125 kHz 0.5 0.42