2 open source boards using the W65C816

Real designs built with the W65C816, 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.

The W65C816 in open source designs

The gallery holds 2 open source boards using the W65C816 from 1 GitHub repository; a typical one measures about 147.2 × 143.5 mm and carries around 47 components.

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

The most starred is Cpu board by rjw57.

W65C816: common questions

Where can I find a W65C816 reference design?

Each of the 2 boards on this page is a real design using the W65C816. 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 W65C816?

The median is 147.2 × 143.5 mm, and 100% are two-layer designs.

What is the most popular open source board using the W65C816?

By GitHub stars, Cpu board by rjw57, with 68 stars.

Can I simulate one of these boards using the W65C816 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.

Browse boards by part