In STM32L0, what is R400k/R10k?

[waclawek.jan]

I see it also in other 'L0xx datasheets, yet no mention of it in the respective RM.

JW

[Imen.D]

Hello @Community member​ ,

Thank you for bringing this to our attention.

I will check this internally and come back to you.

Kind Regards,

Imen

[Imen.D]

Hi @Community member​ ,

Those data R400k and R10k should not appear in STM32L0 datasheets !

I raised internally a request to update and remove those data from the STM32L0 datasheets.

Thanks for your contribution.

Kind Regards,

Imen

[waclawek.jan]

Thanks, Imen.

Jan

[Tesla DeLorean]

and the details slip back into the darkness....

Suppose it's calibration for ADC or COMP

[waclawek.jan]

Clive,

in the 'L1 RM, there are switchable pulldowns/pullups on the comparator input. My guess is that this was a purpose-designed feature for a key customer. I wouldn't be surprised if this was intended to measure capacitance, for whatever reason. And, again a guess, to spare area, the resistors were kicked out when the COMP cell was migrated to 'L0; the values got into the datasheet through copy-paste.

Jan

[waclawek.jan]

Hi @Imen DAHMEN​  ,

so, how exactly does this "internal request to update" work?

The following DS is dated 27.Jun 2019, whereas we've discussed this in December 2018.

Jan

[Imen.D]

Hello Jan,

Unfortunately, this is was missed to update in the new Datasheet as the request concerned all STM32L0 datasheets.

I will re-submit a new request and will push to correct this.

Thank you for your feedback and understanding.

Best Regards,

Imen

[waclawek.jan]

Thanks, Imen.

Jan

[Imen.D]

Next STM32L051 datasheet updated in few days will integrate the correction.