Electrical characteristics
STM32F100x4, STM32F100x6, STM32F100x8, STM32F100xB
Table 18. Peripheral current consumption
Peripheral
Typical consumption at 25 °C(1)
Unit
TIM2
0.52
0.46
0.5
TIM3
TIM4
TIM6
0.125
0.19
0.5(2)
0.13
0.2
TIM7
DAC
APB1
WWDG
SPI2
USART2
USART3
I2C1
0.38
0.32
0.27
0.28
0.16
0.25
0.12
0.18
0.15
0.15
0.15
0.12
0.27
0.63
0.33
0.26
0.25
I2C2
HDMI CEC
GPIO A
GPIO B
GPIO C
GPIO D
GPIO E
ADC1(3)
SPI1
mA
APB2
USART1
TIM1
TIM15
TIM16
TIM17
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.
5.3.6
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
STMICROELECTRONICS [ ST ]
