7 open source boards using the 74LS86
Real designs built with the 74LS86, 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.
Microdigital - TK 2000
clemarfolly
236.8 × 169.8 mm195 parts2LNo license17
BitStack-DigiTrainer
RetroStack
320 × 150 mm262 parts2LMIT2
FloppyBird
inmbolmie
88.9 × 59.7 mm25 parts2LGPL-3.02
Esh
RulecityLLC
299.7 × 229.9 mm182 parts2LBSD-3-Clause1
Lomax ColorMagic Redux
RichCini
254 × 137.7 mm148 parts4LNo license1
Mistrum Home Computer Modulator
Lazarus-L-o-n-g
94.6 × 18 mm18 parts2LCC-BY-NC-4.03
Z80RAM3
lynchaj
100 × 100 mm58 parts2LNo license31
The 74LS86 in open source designs
The gallery holds 7 open source boards using the 74LS86 from 7 GitHub repositories; a typical one measures about 236.8 × 137.7 mm and carries around 148 components.
86% are two-layer designs, the rest use four layers or more, and 43% carry an open source license.
The most starred is Z80RAM3 by lynchaj.
Parts used alongside the 74LS86
What boards using the 74LS86 are built for
74LS86: common questions
Where can I find a 74LS86 reference design?
Each of the 7 boards on this page is a real design using the 74LS86. 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 74LS86?
The 74LS08, 74LS04, 74LS244, 74LS32 and 74LS02 appear in the most repositories here.
How big is a typical board using the 74LS86?
The median is 236.8 × 137.7 mm, and 86% are two-layer designs.
What is the most popular open source board using the 74LS86?
By GitHub stars, Z80RAM3 by lynchaj, with 31 stars.
Can I simulate one of these boards using the 74LS86 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.