Datasheet

Electrical characteristics STM32F101x8, STM32F101xB
44/90 DocID13586 Rev 16
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in Table 18. 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.
5.3.6 External clock source characteristics
High-speed external user clock generated from an external source
The characteristics given in Table 19 result from tests performed using an high-speed
external clock source, and under the ambient temperature and supply voltage conditions
summarized in Table 8.
Table 18. Peripheral current consumption
Peripheral Typical consumption at 25 °C
(1)
1. f
HCLK
= 36 MHz, f
APB1
= f
HCLK
/2, f
APB2
= f
HCLK
, default prescaler value for each peripheral.
Unit
APB1
TIM2 0.6
mA
TIM3 0.6
TIM4 0.6
SPI2 0.08
USART2 0.21
USART3 0.21
I2C1 0.18
I2C2 0.18
APB2
GPIO A 0.21
GPIO B 0.21
GPIO C 0.21
GPIO D 0.21
GPIO E 0.21
ADC1
(2)
2. Specific conditions for ADC: f
HCLK
= 28 MHz, f
APB1
= f
HCLK
/2, f
APB2
= f
HCLK
, f
ADCCLK
= f
APB2
/2, ADON bit
in the ADC_CR2 register is set to 1.
1.4
SPI1 0.24
USART1 0.35