6 open source boards using the 74LS73
Real designs built with the 74LS73, 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.
Fennec6800
ChartreuseK
218 × 131.9 mm113 parts2LBSD-3-Clause20
RC6802 UI
tebl
99.1 × 86.4 mm80 parts2LCERN-OHL-1.26
Preperf 10x10 V1
ApophisXIV
100 × 100 mm1359 parts8LNo license2
DigitalTimer
Bican-Valeriu-Cristian
82 × 84 mm35 parts2LMIT1
Educ 8 timing
ibm2030
220 × 159.9 mm45 parts4LNo license13
ACE-COLOUR2
flypie
165.1 × 114.3 mm95 parts2LGPL-3.013
The 74LS73 in open source designs
The gallery holds 6 open source boards using the 74LS73 from 6 GitHub repositories; a typical one measures about 132.6 × 107.2 mm and carries around 88 components.
67% are two-layer designs, the rest use four layers or more, and 67% carry an open source license.
The most starred is Fennec6800 by ChartreuseK.
What boards using the 74LS73 are built for
74LS73: common questions
Where can I find a 74LS73 reference design?
Each of the 6 boards on this page is a real design using the 74LS73. 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 74LS73?
The 74LS00, 74LS04, 4511, 74LS02 and 74LS08 appear in the most repositories here.
How big is a typical board using the 74LS73?
The median is 132.6 × 107.2 mm, and 67% are two-layer designs.
What is the most popular open source board using the 74LS73?
By GitHub stars, Fennec6800 by ChartreuseK, with 20 stars.
Can I simulate one of these boards using the 74LS73 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.