Datasheet

STM32F100x4, STM32F100x6, STM32F100x8, STM32F100xB Electrical characteristics
Doc ID 16455 Rev 7 43/88
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in Ta ble 1 8 . 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 only one peripheral clocked on
● ambient operating temperature and V
DD
supply voltage conditions summarized in
Ta ble 5 .
Table 17. Typical current consumption in Sleep mode, code running from Flash or
RAM
Symbol Parameter Conditions f
HCLK
Typical values
(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 for the ADC and of 0.5 mA for the DAC 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
Running on high-speed
external clock with an
8 MHz crystal
(3)
3. An 8 MHz crystal is used as the external clock source. The AHB prescaler is used to reduce the frequency
when f
HCLK
> 8 MHz, the PLL is used when f
HCLK
> 8 MHz.
24 MHz 7.3 2.6
mA
16 MHz 5.2 2
8 MHz 2.8 1.3
4 MHz 2 1.1
2 MHz 1.5 1.1
1 MHz 1.25 1
500 kHz 1.1 1
125 kHz 1.05 0.95
Running on high-speed
internal RC (HSI)
24 MHz 6.65 1.9
16 MHz 4.5 1.4
8 MHz 2.2 0.7
4 MHz 1.35 0.55
2 MHz 0.85 0.45
1 MHz 0.6 0.41
500 kHz 0.5 0.39
125 kHz 0.4 0.37