datasheetkicadpackagessoic
I want to incorporate a chip in my design.
This is the datasheet:
https://datasheet.lcsc.com/lcsc/1809251831_Diodes-Incorporated-AZ34063UMTR-G1_C99659.pdf
It is an 8 pin SOIC package.
When I try to assign a footprint for this package in KiCad, I am introduced with many choices:
I am not sure which one to select, and neither do I know how to actually find the one I want. I am not sure what these numbers mean, or how to export that information from the datasheet.
That is a distinction that you make in the symbol rather than the footprint.
In the symbol editor, you can "stack" pins on top of one another, so that they all connect. I'd stick with the datasheet's naming convention (A1, B1, etc). When you create the stacked pins, make one of them the actual pin type and all of the others "passive" and invisible like this
Then, move the pins so that they all overlap like this
In your schematic, you won't see the grey pins (they are invisible) unless you specifically request them. Then your netlist will connect the pins together for pcbnew.
Don't over think it - it's not that hard. This one will do:-
Do you see? Your 2.5 mm x 6.8 mm simply has to fit into the box in the footprint viewer. The one I've selected is 2.5 mm x 6.3 mm which is pretty close and will do as the lead pitch is 10.16 mm. So bend leads to fit. Personally, I tend to go long as my boards are pretty childish, so you could go to the next longer pitch (15.24 mm) which gives you wiggle room.
DIN207 is simply an international standard for common parts so that they're easy to fit into designs. Like TO-3 transistor cases. Decide the lead pitch yourself, but of course it can't be less than the body length or you'll be having to shove it in at an angle/vertically/with hammer.
Tip again. Ideally source your parts first so you have confidence of their sizes. Then design PCB and print it out like below at an exact 1:1 scale. Finally test fit by hand...
Best Answer
Looking at the datasheet, we see a drawing of the required package on page 12:
Here we can see the body of the part is 4.7-5.1mm long (nominal 4.9mm), and 3.8-4.0mm wide (nominal 3.9mm). The pin pitch is 1.27mm.
This suggests you should use one of the parts labelled "3.9x4.9mmxP1.27mm"
The acronym "EP" usually refers to some sort of thermal pad. Your chip does not have one, so you can ignore all of the packages labelled EP.
According to @Hearth from the comments, "N7" indicates the footprint is missing pin 7. As such we can exclude that footprint.
That leaves package number 114 in your list as likely a good option.
I would still have a look the packages in the library and compare it to the datasheet to make sure it is correct.