Datasheet
Electrical characteristics STM32L431xx
104/200 DocID028800 Rev 1
APB1
RTCA 1.7 1.1 2.1
µA/MHz
CRS 0.3 0.3 0.6
I2C1 independent clock domain 3.5 2.8 3.4
I2C1 clock domain 1.1 0.9 1.0
I2C2 independent clock domain 3.5 3.0 3.4
I2C2 clock domain 1.1 0.7 0.9
I2C3 independent clock domain 2.9 2.3 2.5
I2C3 clock domain 0.9 0.4 0.8
LPUART1 independent clock
domain
1.9 1.6 1.8
LPUART1 clock domain 0.6 0.6 0.6
LPTIM1 independent clock
domain
2.9 2.4 2.8
LPTIM1 clock domain 0.8 0.4 0.7
LPTIM2 independent clock
domain
3.1 2.7 3.9
LPTIM2 clock domain 0.8 0.7 0.8
OPAMP 0.4 0.2 0.4
PWR 0.4 0.1 0.4
SPI2 1.8 1.6 1.6
SPI3 1.7 1.3 1.6
SWPMI1 independent clock
domain
1.9 1.6 1.9
SWPMI1 clock domain 0.9 0.7 0.8
TIM2 6.2 5.0 5.9
TIM6 1.0 0.6 0.9
TIM7 1.0 0.6 0.6
USART2 independent clock
domain
4.1 3.6 3.8
USART2 clock domain 1.3 0.9 1.1
USART3 independent clock
domain
4.3 3.5 4.2
USART3 clock domain 1.5 1.1 1.3
WWDG 0.5 0.5 0.5
All APB1 on 45.4 35 47.8
APB2 AHB to APB2
(4)
1.0 0.9 0.9
Table 39. Peripheral current consumption (continued)
Peripheral Range 1 Range 2
Low-power run
and sleep
Unit
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.