2 open source boards using the 8251
Real designs built with the 8251, 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.
Olivetti M20 L1 schematics
anchorz
457.1 × 308 mm410 parts4LMIT4
SBC 8080 ECB
sladek
160.5 × 100.2 mm111 parts2LNo license0
The 8251 in open source designs
The gallery holds 2 open source boards using the 8251 from 2 GitHub repositories; a typical one measures about 308.8 × 204.1 mm and carries around 261 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Olivetti M20 L1 schematics by anchorz.
Parts used alongside the 8251
What boards using the 8251 are built for
8251: common questions
Where can I find a 8251 reference design?
Each of the 2 boards on this page is a real design using the 8251. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
How big is a typical board using the 8251?
The median is 308.8 × 204.1 mm, and 50% are two-layer designs.
What is the most popular open source board using the 8251?
By GitHub stars, Olivetti M20 L1 schematics by anchorz, with 4 stars.
Can I simulate one of these boards using the 8251 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.