6 open source boards using the MC6845
Real designs built with the MC6845, 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.
CGA Redux
hkzlab
337.6 × 105.7 mm168 parts4LCC-BY-NC-4.056
80ColumnCard
btb
155.2 × 78.6 mm47 parts2LApache-2.042
CPC464-2MINI
Board-Folk
246.1 × 85 mm156 parts2LNo license10
VIO MPF I
electrickery
156 × 100.1 mm63 parts2LNo license4
Atari-1090XL-80CVC
reifsnyderb
228.6 × 139.7 mm78 parts2LGPL-2.03
Lomax ColorMagic Redux
RichCini
254 × 137.7 mm148 parts4LNo license1
The MC6845 in open source designs
The gallery holds 6 open source boards using the MC6845 from 6 GitHub repositories; a typical one measures about 237.3 × 102.9 mm and carries around 113 components.
67% are two-layer designs, the rest use four layers or more, and 33% carry an open source license.
The most starred is CGA Redux by hkzlab.
Parts used alongside the MC6845
What boards using the MC6845 are built for
MC6845: common questions
Where can I find a MC6845 reference design?
Each of the 6 boards on this page is a real design using the MC6845. 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 MC6845?
The 74LS86, 74LS00, 74LS04, 74LS166 and 74LS174 appear in the most repositories here.
How big is a typical board using the MC6845?
The median is 237.3 × 102.9 mm, and 67% are two-layer designs.
What is the most popular open source board using the MC6845?
By GitHub stars, CGA Redux by hkzlab, with 56 stars.
Can I simulate one of these boards using the MC6845 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.