4 open source boards using the MC6809
Real designs built with the MC6809, 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.
- schematic only · 84 parts
Nanocomp6809
breadboardinglabs
84 partsApache-2.024 
Apollo 7 Squale
jfdelnero
450 × 160 mm219 parts2LNo license6
NXPLFlex21
laurent-fr
180.3 × 120.7 mm77 parts2LNo license4
MUTIF09 Single Board Computer
ja1umi
155 × 114 mm68 parts2LMIT10
The MC6809 in open source designs
The gallery holds 4 open source boards using the MC6809 from 4 GitHub repositories; a typical one measures about 180.3 × 120.7 mm and carries around 81 components.
100% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Nanocomp6809 by breadboardinglabs.
Microcontrollers on boards using the MC6809
What boards using the MC6809 are built for
MC6809: common questions
Where can I find a MC6809 reference design?
Each of the 4 boards on this page is a real design using the MC6809. 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 MC6809?
The 74LS245, 74LS08, 74LS138 and MC6850 appear in the most repositories here.
Which microcontrollers do boards using the MC6809 use?
Most are built on NXP (1).
How big is a typical board using the MC6809?
The median is 180.3 × 120.7 mm, and 100% are two-layer designs.
What is the most popular open source board using the MC6809?
By GitHub stars, Nanocomp6809 by breadboardinglabs, with 24 stars.
Can I simulate one of these boards using the MC6809 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.