Datasheet

Electrical characteristics STM32L432KB STM32L432KC
86/155 DocID028798 Rev 3
On-chip peripheral current consumption
The current consumption of the on-chip peripherals is given in Table 38. 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 18:
Voltage characteristics
• The power consumption of the digital part of the on-chip peripherals is given in
Table 38. The power consumption of the analog part of the peripherals (where
applicable) is indicated in each related section of the datasheet.
Table 38. 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
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 21.7 18.5 20.3
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
RTCA 1.7 1.1 2.1
CRS 0.3 0.3 0.6
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