Which STM32F7s are pin to pin compatible to STM32F407IIT6

[Tai.Cheng Chung]

Posted on July 14, 2016 at 04:49

Hi:

   Are there any documents mentioned about chip selection for upgrading from STM32F4 to STM32F7? I find a document AN4660 talking about migration, thus I know STM32F756 is the candidate. However is there any table said about device mapping for upgrade. For example If I use STM32F427IIT 6(LQFP176), which device I can choose for STM32F7?

#trust-but-verify

[Tesla DeLorean]

Posted on July 14, 2016 at 06:41

Is the F7 really available in more that one LQFP176 format?

http://www.st.com/content/ccc/resource/sales_and_marketing/promotional_material/brochure/2c/60/38/4d/97/c4/41/aa/brstm32f7.pdf/files/brstm32f7.pdf/jcr:content/translations/en.brstm32f7.pdf

Review a couple of Data Sheets, you should be able to make a determination.

STM32F746IGT6

[Tai.Cheng Chung]

Posted on July 14, 2016 at 08:01

Hi Clive1:

  That is exactly what my question. I don't know how many and which device is active now!

   The new STM website gets me lost. With old website, there is a device selection table for each STMFx series, which I can check device active or not and filter out spec I don't needed. From the filter result, I can easily select one to fit my requirement. But now i don't know where is the table. Do you mean now I need to check device one by one to collect the information? Or where is the table? 

[Walid FTITI_O]

Posted on July 14, 2016 at 11:37

Hi Calvin63,

It is mentioned in the application note 

http://www.st.com/content/ccc/resource/technical/document/application_note/73/76/21/47/ef/d0/4c/16/DM00164538.pdf/files/DM00164538.pdf/jcr:content/translations/en.DM00164538.pdf

''Migration of microcontroller applications from STM32F42xxx/STM32F43xxx to STM32F74xxx/STM32F75xxx? :

?The STM32F74xxx/F75xxx devices are fully pin-to-pin compatible with the STM32F42xxx/F43xxx devices except for the LQFP100 package..?

So for your case, with STM32F427IIT 6(LQFP176), you will be fully compatible with STM32F74xxx/F75xxx

For the website , you can see the STM32F7 details in the dynamic table of product? Parts inside the

http://www.st.com/content/st_com/en/products/microcontrollers/stm32-32-bit-arm-cortex-mcus/stm32f7-series.html?querycriteria=productId=SS1858

: as you see in figure bellow, in the blue circle the possible selection of derivative micros and in green circle the marketing status.

 

-Hannibal-

Hi:

   Are there any documents mentioned about chip selection for upgrading from STM32F4 to STM32F7? I find a document AN4660 talking about migration, thus I know STM32F756 is the candidate. However is there any table said about device mapping for upgrade. For example If I use STM32F427IIT 6(LQFP176), which device I can choose for STM32F7?

[waclawek.jan]

Posted on July 14, 2016 at 12:58

http://stmcufinder.com/

Determining true pin compatibility is of course one step beyond.

JW

[Tesla DeLorean]

Posted on July 14, 2016 at 17:30

Its a basic due diligence task, shouldn't take more than 30 mins to go side-by-side and validate each pin in the data sheet, and against ones own design. Sure it is nice to have a nice table/sheet created by someone else, but they won't get fired if your design fails.

There's no more that a handful of die, and I'm pretty sure the bond out is exactly the same between the original F7 1M FPU-S, and F7 2M FPU-D designs for LQFP176.

Places like DigiKey have good search filters to get down to specific part#, and ST has at least one brochure that charts the part# vs memory, pins, etc.

[Tai.Cheng Chung]

Posted on July 15, 2016 at 04:12

Hi:

   

      Thanks for waclawek's http://stmcufinder.com link, it's very helpful.

      Thanks Hannibal's device selection table link, it tells me, the table is still exist, just I can't see it. I used to see the table with chrome but it's gone for a long time. I open the link by IE, the table comes back, so I go back to chrome and adjust the web setting (website enlarge/shrink feature), the table comes back also. The font in the table is not proper located, but it is there.

   I never use STM32F7 series, this series is new to me, without the table, I don't know how to select device candidate. The problem is solved now.Thanks you all.