STM32F745 First pin location

[chwila]

Posted on April 18, 2016 at 14:42

Hi,

I'm trying to  launch a new board with STM32F745ZGT6 (LQFP144). I see, that MCU case looks slightly differ to the one presented in datasheet on page 207 DocID027590 Rev 4. So I would make sure for the proper position of the first pin.Could sb confirm where the first pin should be located on CPU in attached picture?

[Nesrine M_O]

Posted on April 18, 2016 at 15:47

Hi chwila.sebastian,

The right pin 1 position is on the left bottom corner as it is detailed on the Figure 88 and Figure 90 in the

http://www2.st.com/content/ccc/resource/technical/document/datasheet/96/ed/61/9b/e0/6c/45/0b/DM00166116.pdf/files/DM00166116.pdf/jcr:content/translations/en.DM00166116.pdf

related datasheet.-Syrine-

[Tesla DeLorean]

Posted on April 18, 2016 at 19:15

Bottom left by White Dot, Pin#1Another thread looking at orientation mark, vs tooling marks, all except last image I have an arrow pointing to the orientation mark.

https://community.st.com/0D50X00009Xka68SAB

 

Edit: Fixed DEAD LINK, original post from 19-Apr-2016

[re.wolff9]

Posted on April 19, 2016 at 10:17

The 64-pin chip also has a clear dot on the opposite side. Indeed difficult to determine which one is the ''pin 1 indicator'' and which one is ''just a molding artefact''. 

Hint for ST: If the molding artifact is always round, make the pin-1-indicator square.