2 open source boards using the XX4256

Real designs built with the XX4256, 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.

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The XX4256 in open source designs

The gallery holds 2 open source boards using the XX4256 from 2 GitHub repositories; a typical one measures about 365.8 × 254 mm and carries around 347 components.

100% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.

The most starred is Raemixx500 by SukkoPera.

Parts used alongside the XX4256

What boards using the XX4256 are built for

Retro computing 2

XX4256: common questions

Where can I find a XX4256 reference design?

Each of the 2 boards on this page is a real design using the XX4256. 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 XX4256?

The 68000D, 74HCT14, 74LS05, 74LS139 and 74LS157 appear in the most repositories here.

How big is a typical board using the XX4256?

The median is 365.8 × 254 mm, and 100% are two-layer designs.

What is the most popular open source board using the XX4256?

By GitHub stars, Raemixx500 by SukkoPera, with 313 stars.

Can I simulate one of these boards using the XX4256 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.