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re.wolff9
re.wolff9
Senior
May 11, 2017
Solved

STM32F405RGT6V: what does the V mean?

  • May 11, 2017
  • 3 replies
  • 1532 views
Posted on May 11, 2017 at 14:03

Hi,

I've been using STM32F405R processors on my boards for a while. I once figured out what the numbers and letters after the R mean, but they were not of any importance to me. (I have plenty with 512Mb flash). 

This time when ordering a new batch of '405 processors, they (farnell) are offering the STM32F405RGT6V and the 'V' here was new to me. So I looked things up in the datasheet. There it says something like: 'xxx' packaging options like TR for tape and reel. 

I would like to be sure that it doesn't mean something like 'cheaper version without the second and third ADC'. 

Roger. 

    This topic has been closed for replies.
    Best answer by re.wolff9
    Posted on June 07, 2017 at 08:49

    Answer from ST: 

    The V at the end means that ST paid the MP3 licence for that processor. 

    3 replies

    waclawek.jan
    waclawek.jan
    Super User
    May 11, 2017
    Posted on May 12, 2017 at 00:52

    There it says something like: ''***'' packaging options like TR for tape and reel. 

    No, it says ''programmed parts''.

    0690X00000606p8QAA.png

    https://community.st.com/0D70X000006SLfSSAW

     

    JW

    re.wolff9
    re.wolff9Author
    Senior
    May 12, 2017
    Posted on May 12, 2017 at 12:14

    Yes, ok, the point is, it says 'xxx = programmed part, TR= tape and reel' but nothing about 'V'. 

    waclawek.jan
    waclawek.jan
    Super User
    May 12, 2017
    Posted on May 12, 2017 at 12:56

    Basicly it says 'it's a customized part - if you don't know what it is, don't buy it'.

    JW

    re.wolff9
    re.wolff9Author
    Senior
    May 19, 2017
    Posted on May 19, 2017 at 19:03

    Yeah. Basically, the datasheet is telling me it is a programmed part for a specific customer. But that makes me wonder: 

    http://nl.farnell.com/stmicroelectronics/stm32f405rgt6v/mcu-32bit-cortex-m4-168mhz-lqfp/dp/2333282

     

    ... why is farnell selling preprogrammed parts for a different customer????

    Even if that is the literal reading of the datasheet, I'm still guessing that it is more likely that ST forgot to document (where I can find it) what that V means. That's why I'm asking.... 

    (I have found that ST is not infallible. I've found a few thingies in datasheets.... )

    P.S. I wrote this like a week ago, but apparenly it got lost.... 

    re.wolff9
    re.wolff9AuthorBest answer
    Senior
    June 7, 2017
    Posted on June 07, 2017 at 08:49

    Answer from ST: 

    The V at the end means that ST paid the MP3 licence for that processor. 

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