Add SOP-10 and NSOP-16 footprints for HT42B534

[thatoddmailbox]

Add SOP-10 and NSOP-16 footprints for HT42B534

This pull request goes along with KiCad/kicad-symbols#2695, which adds symbols for the HT42B534 USB-UART IC. (datasheet: https://www.holtek.com/documents/10179/11842/HT42B534-xv110.pdf)

Holtek uses slightly different names for some packages, so it was suggested in that PR to add footprints for those packages. Since I couldn't find a way to make an alias for packages, I copied and renamed the existing footprints. You can match the Holtek package drawings to the drawings referenced in the original footprints, and see that the dimensions are all the same.

Package_SO:SSOP-10_3.9x4.9mm_P1.00mm -> Package_SO:SOP-10_3.9x4.9mm_P1.00mm
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm -> Package_SO:NSOP-16_3.9x9.9mm_P1.27mm

Screenshots:

---

All contributions to the kicad library must follow the KiCad library convention

Thanks for creating a pull request to contribute to the KiCad libraries! To speed up integration of your PR, please check the following items:

• Provide a URL to a datasheet for the footprint(s) you are contributing
• An example screenshot image is very helpful
• If there are matching symbol or 3D model pull requests, provide link(s) as appropriate
• Check the output of the Travis automated check scripts - fix any errors as required
• Give a reason behind any intentional library convention rule violation.

---

Be patient, we maintainers are volunteers with limited time and need to check your contribution against the datasheet. You can speed up the process by providing all the necessary information (see above). And you can speed up the process even more by providing a dimensioned drawing of your contribution. A tutorial on how to do that is found here: https://forum.kicad.info/t/how-to-check-footprint-correctness/9279 (This is optional!)

[myfreescalewebpage]

@thatoddmailbox is it generated with the footprint generator at https://github.com/pointhi/kicad-footprint-generator/pulls ?
If yes, please provide link to the pull request of the generator. Else, you have to use it to generate these footprints.
Joel

[thatoddmailbox]

@myfreescalewebpage They were just copied and renamed from the existing symbols. I have the NSOP-16_3.9x9.9mm_P1.27mm footprint being generated from the script now, and will submit a PR for it, but wanted to ask about the other footprint (SOP-10).

SOP-10_3.9x4.9mm_P1.00mm was copied from SSOP-10_3.9x4.9mm_P1.00mm, which was not originally generated with the script. Should I still add a definition for that or leave it as is? Also, if I do use the script, it wants to just call it P1mm, should I use that name or keep it as P1.00mm to match the original name?

[myfreescalewebpage]

I think using the script for both is a good enhancement.
Do not modify the existing SSOP name because it will have an impact on the symbols.
Joel

[myfreescalewebpage]

@thatoddmailbox any news here ?

[myfreescalewebpage]

No news of the author, indicate this is Abandoned

[thatoddmailbox]

@myfreescalewebpage Sorry about that! I created pointhi/kicad-footprint-generator#645. Should I update this PR with the output of the generator? Or will it be automatically added to kicad-footprints once the generator PR is merged?

[cpresser]

@myfreescalewebpage I will take care of this PR.

Regarding the name, I suggest to change it. Just 3 symbols need to be fixed:

[thatoddmailbox]

@cpresser OK, I updated pointhi/kicad-footprint-generator#645 and KiCad/kicad-symbols#2695 to rename the footprint and associated symbols.