Datasheet

DocID029968 Rev 3 119/210
STM32L452xx Electrical characteristics
186
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in Table 51. The MCU is placed
under the following conditions:
• All I/O pins are in Analog mode
• The given value is calculated by measuring the difference of the current consumptions:
– when the peripheral is clocked on
– when the peripheral is clocked off
• Ambient operating temperature and supply voltage conditions summarized in Table 20:
Voltage characteristics
• The power consumption of the digital part of the on-chip peripherals is given in
Table 51. The power consumption of the analog part of the peripherals (where
applicable) is indicated in each related section of the datasheet.
Table 51. Peripheral current consumption
Peripheral Range 1 Range 2
Low-power run
and sleep
Unit
AHB
Bus Matrix
(1)
3.2 2.9 3.1
µA/MHz
ADC independent clock domain 0.4 0.1 0.2
ADC clock domain 2.1 1.9 1.9
CRC 0.4 0.2 0.3
DMA1 1.4 1.3 1.4
DMA2 1.5 1.3 1.4
FLASH 6.2 5.2 5.8
GPIOA
(2)
1.7 1.4 1.6
GPIOB
(2)
) 1.6 1.3 1.6
GPIOC
(2)
1.7 1.5 1.6
GPIOD
(2)
1.8 1.6 1.7
GPIOE
(2)
1.7 1.6 1.6
GPIOH
(2)
0.6 0.6 0.5
QSPI 7.0 5.8 7.3
RNG independent clock domain 2.2 N/A N/A
RNG clock domain 0.5 N/A N/A
SRAM1 0.8 0.9 0.7
SRAM2 1.0 0.8 0.8
TSC 1.6 1.3 1.3
All AHB Peripherals 25.2 21.7 23.6
APB1
AHB to APB1 bridge
(3)
0.9 0.7 0.9
CAN1 4.1 3.2 3.9
DAC1 2.4 1.8 2.2
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