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Liv4F operating voltage range - Documentation inconsistent

EGola.1
Associate II

Liv4F module. 

 

Operating voltage range in the data sheet stated 3v-3.3v

In the Manual 1.8v-3.3v  what is true? 

 

Can you fix the documents??? 

7 REPLIES 7
STOne-32
ST Employee

Hi @EGola.1 ,

 

Thank you for the valuable remark :

https://www.st.com/resource/en/user_manual/um3004-teseoliv4f-and-teseoliv4fm-hardware-documentation-stmicroelectronics.pdf

on our TESEO LIV4F module . 

have a great Sunday 

STOne-32

So, 1-8v-3.3v? 

 

Correct? 

GalaxyQuest
ST Employee

Hi,

LIV4F can operate only at 3.3V. 

We are fixing the documentation and releasing it this quarter.

Thanks for your patience.


In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
bofh
Associate III

so now we have also conflicting statements from ST employees here: STOne-32 points to UM3004 (stating 1.8V to 3.3V, can be left floating) and GalaxyQuest writes "only 3.3V" which is not even the spec from the data sheet (3V too 3.63V).

Is there any chance of a final statement? And fixed documentation?

Hi,

For operating conditions like voltage, the datasheet takes precedence, therefore 3V - 3.63V. LIV4F cannot operate down to 1.8V. The hardware manual, UM3004 is mainly for pin guidelines.

Hope this helps.

 

 


In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.

Thank you @GalaxyQuest  confirming the statement . Much appreciated 

Dear @bofh ,

Hope now it is more clear .

have a great day

STOne-32


@GalaxyQuest wrote:

For operating conditions like voltage, the datasheet takes precedence, therefore 3V - 3.63V. LIV4F cannot operate down to 1.8V. The hardware manual, UM3004 is mainly for pin guidelines.


Therefore you should keep the operating conditions just in the datasheet - don't mention such things in the UM.

 


On 4 April 2024, @GalaxyQuest wrote:

We are fixing the documentation and releasing it this quarter.


That's been one mighty long quarter!!

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.