12 open source boards using the 74LS125
Real designs built with the 74LS125, 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.
STM32STLinkForm
grumat
73.7 × 38.1 mm65 parts2LGPL-2.015
CD32-to-A500-gamepad
CRG-Glen
129.3 × 40.4 mm27 parts2LCERN-OHL-P-2.06
AVR/ArduinoKeyboard
danwerner21
282.7 × 108.3 mm57 parts2LNo license50
AVR/ArduinoOpenHardwareExG Shield Test Board
OpenElectronicsLab
147.3 × 81.3 mm124 parts4LCERN-OHL-1.28
RC202-68000 SIO 1
MarkD833
101.6 × 53.3 mm40 parts4LCC-BY-NC-4.08
AVR/ArduinoOpenHardwareExG Shield Test Board all panelled
147.3 × 81.3 mm124 parts4LCERN-OHL-1.28
68302 CPU Board
101.6 × 53.3 mm37 parts4LCC-BY-NC-4.08
BlackPill-BMP
72.5 × 59.7 mm41 parts2LGPL-2.015
68000 CPU Board
101.6 × 53.3 mm32 parts4LCC-BY-NC-4.08
RC107-68000 ROM RAM 1
101.6 × 53.3 mm28 parts4LCC-BY-NC-4.08
Microsd
thebiguno
20.3 × 12.7 mm8 parts2LNo license75
RC208-68000 BOOTROM RAM 2
101.6 × 53.3 mm20 parts4LCC-BY-NC-4.08
The 74LS125 in open source designs
The gallery holds 12 open source boards using the 74LS125 from 6 GitHub repositories; a typical one measures about 101.6 × 53.3 mm and carries around 39 components.
58% use four copper layers or more, and 42% carry an open source license.
The most starred is Microsd by thebiguno.
Parts used alongside the 74LS125
Microcontrollers on boards using the 74LS125
What boards using the 74LS125 are built for
74LS125: common questions
Where can I find a 74LS125 reference design?
Each of the 12 boards on this page is a real design using the 74LS125. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
Which microcontrollers do boards using the 74LS125 use?
Most are built on AVR/Arduino (3) and STM32 (1).
How big is a typical board using the 74LS125?
The median is 101.6 × 53.3 mm, and 42% are two-layer designs.
What is the most popular open source board using the 74LS125?
By GitHub stars, Microsd by thebiguno, with 75 stars.
Can I simulate one of these boards using the 74LS125 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.