Datasheet

Electrical characteristics STM32F103x4, STM32F103x6
44/90 Doc ID 15060 Rev 6
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in Ta ble 1 9. 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
Ta bl e 6
5.3.6 External clock source characteristics
High-speed external user clock generated from an external source
The characteristics given in Tabl e 2 0 result from tests performed using an high-speed
external clock source, and under ambient temperature and supply voltage conditions
summarized in Tabl e 9.
Table 19. Peripheral current consumption
(1)
1. f
HCLK
= 72 MHz, f
APB1
= f
HCLK
/2, f
APB2
= f
HCLK
, default prescaler value for each peripheral.
Peripheral Typical consumption at 25 °C Unit
APB1
TIM2 1.2
mA
TIM3 1.2
USART2 0.35
I2C 0.39
USB 0.65
CAN 0.72
APB2
GPIO A 0.47
mA
GPIO B 0.47
GPIO C 0.47
GPIO D 0.47
ADC1
(2)
2. Specific conditions for ADC: f
HCLK
= 56 MHz, f
APB1
= f
HCLK
/2, f
APB2
= f
HCLK
, f
ADCCLK
= f
APB2/4
, ADON bit
in the ADC_CR2 register is set to 1.
1.81
ADC2 1.78
TIM1 1.6
SPI 0.43
USART1 0.85