5 open source boards using the 74LS273
Real designs built with the 74LS273, 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.
Dragon64
danwerner21
333.2 × 205.9 mm220 parts2LNo license34
Lomax ColorMagic Redux
RichCini
254 × 137.7 mm148 parts4LNo license1
Backup
333.2 × 205.9 mm218 parts2LNo license34
Backup1
333.2 × 205.9 mm218 parts2LNo license34
Z80RAM3
lynchaj
100 × 100 mm58 parts2LNo license31
The 74LS273 in open source designs
The gallery holds 5 open source boards using the 74LS273 from 3 GitHub repositories; a typical one measures about 333.2 × 205.9 mm and carries around 218 components.
80% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.
The most starred is Dragon64 by danwerner21.
What boards using the 74LS273 are built for
74LS273: common questions
Where can I find a 74LS273 reference design?
Each of the 5 boards on this page is a real design using the 74LS273. 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 74LS273?
The 74LS244, 74LS00, 74LS02, 74LS04 and 74LS174 appear in the most repositories here.
How big is a typical board using the 74LS273?
The median is 333.2 × 205.9 mm, and 80% are two-layer designs.
What is the most popular open source board using the 74LS273?
By GitHub stars, Dragon64 by danwerner21, with 34 stars.
Can I simulate one of these boards using the 74LS273 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.