
Inboard386
ronnyroy111/inboard386
Reverse engineered schematics, PCB and logic equations for the Intel 386/PC accelerator

The 63S281NL is a non Volatile Memory made by AMD in a PLCC-20(9x9) package with 5 pins. 0℃~+75℃ 1Kbit 4.75V~5.25V Parallel Port (Parallel) PLCC-20(9x9) Non-Volatile Memory (ROM).
PCBKit's library has its footprint (EasyEDA_Cloud:PLCC-20_L9.0-W9.0-P1.27-LS9.9-T, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C17422176). 2 open-source boards in 1 repository on GitHub use it.
The library has no symbol for this part yet.

ronnyroy111/inboard386
Reverse engineered schematics, PCB and logic equations for the Intel 386/PC accelerator

ronnyroy111/inboard386
Reverse engineered schematics, PCB and logic equations for the Intel 386/PC accelerator
<iframe src="https://pcbkit.io/embed/parts/amd/63S281NL" title="63S281NL in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/amd/63S281NL.jpg" alt="63S281NL" width="1200" height="900">[](https://pcbkit.io/parts/amd/63S281NL)Yes. the footprint EasyEDA_Cloud:PLCC-20_L9.0-W9.0-P1.27-LS9.9-T, both drawn on this page. PCBKit places them on a board for you when you design with it.
PLCC-20(9x9), with 5 pins. Its footprint is drawn on this page.
AMD publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C17422176, with 0 in stock; the sellers' links on this page open their listings.
2 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.