Footprint for STM32F103CBT6

tyleec · ‎2009-03-02

Posted on March 02, 2009 at 10:26

relaxe · ‎2011-05-17

Posted on May 17, 2011 at 13:03

Almost all the devices in Altium Designer comes in 3 footprint versions: L-M-N. The only difference in the footprint ''fitness'' to the standart.

Comparing with QFP_Thin_50P_Side_X.PcbLib , part TSQFP50P600X600-24, and one pad size:

L is smallest : 0.25x1.55mm

N is normal: 0.30x1.80mm

M is largest: 0.30x2.10mm

So it all rounds up to how you plan to solder the thing. For a hand-soldered job I would recommand going M all the way. For a machine placement, I would go with the fab's requirements on pad oversizing.

-Relaxe

tyleec · ‎2011-05-17

Posted on May 17, 2011 at 13:03

Hi!

Does anyone know the footprint for STM32F103CBT6? In altium designer 8 there are three types of footprint available and I do not know which one to choose. (LQFP48L LQFP48N LQFP48M)

Thank you in advance.

Tyleec

[ This message was edited by: tyleec on 19-02-2009 07:47 ]

:)

[ This message was edited by: tyleec on 19-02-2009 09:48 ]

16-32micros · ‎2011-05-17

Posted on May 17, 2011 at 13:03

Hi relaxe,

Thanks, I really appreciate your complete and detailed answer regarding Altium Designer Summer 08.

BTW, I have to check with them for the new STM32 devices ( 144 & ...) to provides the footprint and libraries as well. :) Thanks again.

Cheers,

STOne-32.

tyleec · ‎2011-05-17

Posted on May 17, 2011 at 13:03

Thanks all! That really helps me a lot :D