Electrical characteristics
STM32F103x8, STM32F103xB
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 or V (no load)
DD SS
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 supply voltage conditions summarized in
DD
Table 6
(1)
Table 19. Peripheral current consumption
Peripheral
Typical consumption at 25 °C
Unit
TIM2
TIM3
TIM4
SPI2
1.2
1.2
0.9
0.2
USART2
0.35
0.35
0.39
0.39
0.65
0.72
0.47
0.47
0.47
0.47
0.47
1.81
1.78
1.6
APB1
mA
USART3
I2C1
I2C2
USB
CAN
GPIO A
GPIO B
GPIO C
GPIO D
GPIO E
APB2
mA
ADC1(2)
ADC2
TIM1
SPI1
0.43
0.85
USART1
1. fHCLK = 72 MHz, fAPB1 = fHCLK/2, fAPB2 = fHCLK, default prescaler value for each peripheral.
2. Specific conditions for ADC: fHCLK = 56 MHz, fAPB1 = fHCLK/2, fAPB2 = fHCLK, fADCCLK = fAPB2/4, ADON bit
in the ADC_CR2 register is set to 1.
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Doc ID 13587 Rev 12
STMICROELECTRONICS [ ST ]
