Electrical characteristics
STM32F103x8, STM32F103xB
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in
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
Peripheral current consumption
(1)
Peripheral
TIM2
TIM3
TIM4
SPI2
USART2
Table 19.
Typical consumption at 25 °C
1.2
1.2
0.9
0.2
0.35
Unit
APB1
USART3
I2C1
I2C2
USB
CAN
GPIO A
GPIO B
GPIO C
GPIO D
GPIO E
APB2
ADC1
(2)
ADC2
TIM1
SPI1
USART1
0.35
0.39
0.39
0.65
0.72
0.47
0.47
0.47
0.47
0.47
mA
mA
1.81
1.78
1.6
0.43
0.85
1. f
HCLK
= 72 MHz, f
APB1
= f
HCLK
/2, f
APB2
= f
HCLK
, default prescaler value for each peripheral.
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.
50/102
Doc ID 13587 Rev 14
STMICROELECTRONICS [ STMICROELECTRONICS ]
