Electrical characteristics
STM32F103x4, STM32F103x6
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
1.2
1.2
USART2
0.35
0.39
0.65
0.72
0.47
0.47
0.47
0.47
1.81
1.78
1.6
APB1
I2C
mA
USB
CAN
GPIO A
GPIO B
GPIO C
GPIO D
APB2
ADC1(2)
ADC2
TIM1
mA
SPI
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.
5.3.6
External clock source characteristics
High-speed external user clock generated from an external source
The characteristics given in Table 20 result from tests performed using an high-speed
external clock source, and under ambient temperature and supply voltage conditions
summarized in Table 9.
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Doc ID 15060 Rev 3
STMICROELECTRONICS [ ST ]
