5 open source boards using the 8254
Real designs built with the 8254, 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.
AVR/ArduinoM8SBC-486
maniekx86
150 × 150 mm123 parts4LNo license253- schematic only · 207 parts
DeskPro386 16
breadboardinglabs
207 partsMIT4 
AVR/ArduinoMDA80486SBC Final
mattheeewahn
150 × 150 mm123 parts4LGPL-3.01
MUTIF09 Single Board Computer
ja1umi
155 × 114 mm68 parts2LMIT10
ChargeBoard
Envious-Data
24.8 × 65 mm49 parts2LGPL-3.01
The 8254 in open source designs
The gallery holds 5 open source boards using the 8254 from 5 GitHub repositories; a typical one measures about 150 × 132 mm and carries around 123 components.
50% are two-layer designs, the rest use four layers or more, and 80% carry an open source license.
The most starred is M8SBC-486 by maniekx86.
Parts used alongside the 8254
Microcontrollers on boards using the 8254
What boards using the 8254 are built for
8254: common questions
Where can I find a 8254 reference design?
Each of the 5 boards on this page is a real design using the 8254. 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 8254?
The 74LS245, 8259A-2, 486Socket, 74LS573 and AMS1117 appear in the most repositories here.
Which microcontrollers do boards using the 8254 use?
Most are built on AVR/Arduino (2).
How big is a typical board using the 8254?
The median is 150 × 132 mm, and 50% are two-layer designs.
What is the most popular open source board using the 8254?
By GitHub stars, M8SBC-486 by maniekx86, with 253 stars.
Can I simulate one of these boards using the 8254 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.