Electrical characteristics
STM32F100x4, STM32F100x6, STM32F100x8, STM32F100xB
5.3.6
Table 18. Peripheral current consumption
Peripheral
Typical consumption at 25 °C(1)
Unit
TIM2
0.52
TIM3
0.46
TIM4
0.5
APB1
TIM6
TIM7
DAC
WWDG
0.125
0.19
0.5(2)
0.13
SPI2
0.2
USART2
0.38
USART3
0.32
I2C1
0.27
I2C2
HDMI CEC
GPIO A
0.28
0.16
mA
0.25
GPIO B
0.12
GPIO C
0.18
GPIO D
0.15
APB2
GPIO E
ADC1(3)
SPI1
0.15
0.15
0.12
USART1
0.27
TIM1
0.63
TIM15
0.33
TIM16
0.26
TIM17
0.25
1. fHCLK = fAPB1 = fAPB2 = 24 MHz, default prescaler value for each peripheral.
2. Specific conditions for DAC: EN1 bit in DAC_CR register set to 1.
3. Specific conditions for ADC: fHCLK = 24 MHz, fAPB1 = fAPB2 = fHCLK, fADCCLK = fAPB2/2, ADON bit in the
ADC_CR2 register is set to 1.
External clock source characteristics
High-speed external user clock generated from an external source
The characteristics given in Table 19 result from tests performed using an high-speed
external clock source, and under the ambient temperature and supply voltage conditions
summarized in Table 8.
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Doc ID 16455 Rev 2