What's the difference between ''stm32f407vgtx'' & ''stm32f407vg''

[m m]

Posted on September 04, 2017 at 10:32

Hi

In Software pack there is a 'stm32f407vgtx' micro and in legacy packs there is 'stm32f407vg'. I have a Discovery board that I bought about 4 years ago that has stm32f407vg micro on it. So Which one of these I must choose?

And the problem is here, when I choose stm32f407vg from legacy packs, it has no RTE page and I can't choose CMSIS files to add to my project!

[Alan Chambers]

Posted on September 04, 2017 at 11:02

The part numbering is documented in the datasheet for STM32F405xx_407xx (DocID022152 Rev 4) on page 170, and probably elsewhere.

V means the part has 100 pins,

G means it has 1024K of flash,

T means it is an LQFP package, and

x refers to the temperature range, e.g. 6 means -40 to 85 ^C.

Basically, the longer designation is just more specific about the physical nature of the part. I don't know that the numbering is case sensitive (there are no lower case alternatives for these particular parts), but recommend upper case as used by ST.

[m m]

Posted on September 07, 2017 at 07:40

Thank you Alan,

So you say there is no difference between them? 

Then why one micro has two definitions in 2 different pack(Software and legacy packs)