2022-12-27 04:04 AM
Hey,
I am using the STM32G070Rb development kit for my project.
i downloaded from the CAD resources the cpu schematics.
However in the libary there are 3 types of packages
1.LQFP-64-M
2.LQFP-64-L
3.LQFP-64
what package i have on my development kit?
thanks
Solved! Go to Solution.
2023-01-01 03:11 AM
The 3 footprint LQFP-64, LQFP-64-M, LQFP-64-L are for the same device package 10x10mm body and 12x12mm including pins. Take a good look at what is displayed by choosing "Detailed View".
Only the dimensions of the pads change.
Choose the one that best suits your application or your company's rules.
2022-12-27 06:39 AM
choose exactly same size as in ds of STM32G070Rb .
2022-12-27 07:10 AM
HOW CAN I KNOW?
physically mesure the cpu?
or i can fund it in the data sheet?
2022-12-27 07:25 AM
shure - just read..
2022-12-30 09:34 AM
What CAD do you use?
With Diptrace there are variant for the same package: the size of the pads are different if you do manual soldering or machine soldering (machine can use smaller pads).
2022-12-30 09:48 AM
I looked at the proposed footprints.
They are all for the same package, only the pads dimension change. You can see this selecting "Pin detail view". The _M variant is obviously for manual soldering.
2023-01-01 12:24 AM
Thank you for your reply,
Where you can see this Package information?
2023-01-01 12:31 AM
I downloaded the CAD for EAGLE from the recources section.
I think the soldering is done by machine.
How they have the same package? There are 3 diffrent sizes, Like @AScha.3 mention in his comment
2023-01-01 03:11 AM
The 3 footprint LQFP-64, LQFP-64-M, LQFP-64-L are for the same device package 10x10mm body and 12x12mm including pins. Take a good look at what is displayed by choosing "Detailed View".
Only the dimensions of the pads change.
Choose the one that best suits your application or your company's rules.
2023-01-01 06:40 AM
Thank you!