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A
akhilfrancis
Associate
March 22, 2025
Question

Power consumption of STM32L412XX

  • March 22, 2025
  • 3 replies
  • 1761 views

Hi, I am doing a comparison between the STM32L432 and the STM32L412. However, I observed a discrepancy in the STM32L412 power values under Table 4. STM32L412xx modes overview, LPRun and LPSleep are showing the same value. Is this correct? 

akhilfrancis_0-1742620945851.png

 

3 replies

KnarfB
KnarfB
Super User
March 22, 2025

Looks like an error in DS12469 Rev 9 data sheet. Would expect a value slightly below STM32L432xx (DS11451 Rev 4). Sleep is a feature of the Arm Cortex-M4 core.

hth

KnarfB

A
akhilfrancisAuthor
Associate
March 22, 2025

Could you please confirm if this error is officially acknowledged and if there is an errata or updated documentation addressing the discrepancy? If not, may I assume that it's simply incorrect data in the datasheet?

KDJEM.1
KDJEM.1
ST Technical Moderator
March 24, 2025

Hello @akhilfrancis and welcome to the community;

 

Thank you for bringing this issue to our attention.

I reported internally for checking.

Internal ticket number: 205937 (This is an internal tracking number and is not accessible or usable by customers).

 

Thank you.

Kaouthar

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KDJEM.1
KDJEM.1
ST Technical Moderator
March 24, 2025

Hello @akhilfrancis;

 

I confirm that this is a typo and will be corrected in the coming version of the datasheet.

Please use detailed "Table 40. Current consumption in Sleep and Low-power sleep modes, flash ON" and "Table 42. Current consumption in Low-power sleep modes, flash in power-down" in DS12469 for LPSleep current consumption.

 

Thank you.

Kaouthar

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.
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