2 open source boards using the 74LS75
Real designs built with the 74LS75, 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.
Qx10 titan clone
brijohn
281 × 79 mm48 parts2LNo license9
Poly88 cpu daughterboard
abzman
46.4 × 29.2 mm4 parts2LUnlicense3
The 74LS75 in open source designs
The gallery holds 2 open source boards using the 74LS75 from 2 GitHub repositories; a typical one measures about 163.7 × 54.1 mm and carries around 26 components.
100% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Qx10 titan clone by brijohn.
74LS75: common questions
Where can I find a 74LS75 reference design?
Each of the 2 boards on this page is a real design using the 74LS75. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
How big is a typical board using the 74LS75?
The median is 163.7 × 54.1 mm, and 100% are two-layer designs.
What is the most popular open source board using the 74LS75?
By GitHub stars, Qx10 titan clone by brijohn, with 9 stars.
Can I simulate one of these boards using the 74LS75 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.