6 open source boards using the 82C55
Real designs built with the 82C55, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
Omega-Mainboard
skiselev
333.4 × 149.9 mm248 parts2LGPL-3.0456
Omega-Mainboard
merlinkv
333.4 × 149.9 mm248 parts2LGPL-3.040
Minimax8085-apu ext
100 × 80 mm38 parts2LNo license13
Omega-Mainboard
msx-solis
333.4 × 149.9 mm248 parts2LGPL-3.07
Omega mainboard1.3eu
333.4 × 149.9 mm252 parts2LGPL-3.05
Rev a physical
ddanila
200 × 200 mm119 parts4LNo license1
The 82C55 in open source designs
The gallery holds 6 open source boards using the 82C55 from 6 GitHub repositories; a typical one measures about 333.4 × 149.9 mm and carries around 248 components.
83% are two-layer designs, the rest use four layers or more, and 67% carry an open source license.
The most starred is Omega-Mainboard by skiselev.
Parts used alongside the 82C55
82C55: common questions
Where can I find a 82C55 reference design?
Each of the 6 boards on this page is a real design using the 82C55. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the 82C55?
The 74HCT157, 74HCT74, 74AHCT125, 74AHCT138 and 74AHCT32 appear in the most repositories here.
How big is a typical board using the 82C55?
The median is 333.4 × 149.9 mm, and 83% are two-layer designs.
What is the most popular open source board using the 82C55?
By GitHub stars, Omega-Mainboard by skiselev, with 456 stars.
Can I simulate one of these boards using the 82C55 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.