Datasheet

DocID15056 Rev 5 41/80
STM32F102x8, STM32F102xB Electrical characteristics
79
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
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
Table 5.
Table 18. Peripheral current consumption
Peripheral Typical consumption at 25 °C
(1)
1. f
HCLK
= 48 MHz, f
APB1
= f
HCLK/2
, f
APB2
= f
HCLK
, default prescaler value for each peripheral.
Unit
APB1
TIM2 0.90
mA
TIM3 0.86
TIM4 0.88
SPI2 0.26
USART2 0.45
USART3 0.43
USB 0.57
I2C1 0.24
I2C2 0.25
APB2
GPIO A 0.45
GPIO B 0.32
GPIO C 0.49
GPIO D 0.32
ADC1
(2)
2. Specific conditions for ADC: f
HCLK
= 48 MHz, f
APB1
= f
HCLK
/2, f
APB2
= f
HCLK
, f
ADCCLK
= f
HCLK
/4, ADON bit
in the ADC_CR2 register is set to 1.
1.51
SPI1 0.21
USART1 0.72