Nucleo-L4R5ZI-P STOP1 mode current consumption is not matching datasheet

[Brajp.1]

I am using NUCLEO-L4R5ZI-P board, I have measured current consumption by using example project (PWR Mode: STOP1) and I got the following readings :

Practically STOP1 : 1.19 uA

Datasheet STOP1 : 4 uA

Why I am not getting same value mentioned in datasheet is there something wrong?

[ChahinezC]

Hello @Brajp.1​,

When checking the STM32L4R5ZI datasheet, the Current consumption in Stop 1 mode is represented in the following table:

 

Can you precise which datasheet you are working with and the mode you are using?

Chahinez.

[Brajp.1]

I am using following datasheet:

https://www.st.com/resource/en/application_note/dm00148033-stm32l4-and-stm32l4-ultralowpower-features-overview-stmicroelectronics.pdf

I am using STOP1 mode.

[Brajp.1]

[ChahinezC]

Hi,

The table of the application note you are referring to concerns the L4 product while you are working with the L4+, please check the note I highlighted in the screenshot below:

 

To check the correct values of the power consumption I advise you to refer to the datasheet of STM32L4R5xx since it contains different use cases presented in the table 46.

Chahinez,