22 open source boards using the 74LS05
Real designs built with the 74LS05, 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.
Raemixx500
SukkoPera
365.8 × 254 mm349 parts2LNo license313
Leako
barbeque
149.1 × 98.8 mm128 parts2LNo license20
ISA DualUARTParport
hkzlab
176.5 × 90.2 mm69 parts2LCC-BY-NC-4.018
Coleco original
sparkletron
168.4 × 214 mm218 parts2LMIT16
Front panel 9602
ibm2030
283 × 96 mm157 parts2LNo license13
Coco9511pak
barberd
98.3 × 107.1 mm43 parts2LGPL-3.012
RP2040/RP2350Pico506
hmerrett
138 × 79 mm57 parts2LGPL-3.03
C64NIKI2
ibaldachini
58.4 × 84.8 mm27 parts2LNo license2
68k-SBC
transistorfet
154.9 × 139.7 mm72 parts2LGPL-3.069
Coleco original main only
168.4 × 214 mm182 parts2LMIT16
ASCII keyboard
306 × 145 mm124 parts2LNo license13
128 X 16 RAM V4 FINAL
180 × 95 mm108 parts4LNo license13
CPC464-2MINIRS232C
Board-Folk
93.4 × 97.9 mm38 parts2LNo license10
ASCII keyboard 3
297 × 145 mm77 parts2LNo license13
Octal display
140 × 100 mm69 parts2LNo license13
UC2 synertek KTM2
roberto314
100 × 100 mm48 parts2LNo license1
Educ 8 timing
220 × 159.9 mm45 parts4LNo license13
256 word memory
220 × 160 mm36 parts2LNo license13
BionicHD6120
tgtakaoka
25.4 × 68.6 mm13 parts2LCustom license6
Program counter and adder logic
220 × 160 mm29 parts2LNo license13
PC and ADDER 74LS74 MOD
220 × 160 mm28 parts2LNo license13
Educ 8 decoder
220 × 160 mm26 parts2LNo license13
The 74LS05 in open source designs
The gallery holds 22 open source boards using the 74LS05 from 12 GitHub repositories; a typical one measures about 172.5 × 123.4 mm and carries around 63 components.
91% are two-layer designs, the rest use four layers or more, and 23% carry an open source license.
The most starred is Raemixx500 by SukkoPera.
Parts used alongside the 74LS05
Microcontrollers on boards using the 74LS05
What boards using the 74LS05 are built for
74LS05: common questions
Where can I find a 74LS05 reference design?
Each of the 22 boards on this page is a real design using the 74LS05. 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 74LS05?
The 74LS74, 74LS138, 74LS32, 74LS00 and 74LS04 appear in the most repositories here.
Which microcontrollers do boards using the 74LS05 use?
Most are built on RP2040/RP2350 (1).
How big is a typical board using the 74LS05?
The median is 172.5 × 123.4 mm, and 91% are two-layer designs.
What is the most popular open source board using the 74LS05?
By GitHub stars, Raemixx500 by SukkoPera, with 313 stars.
Can I simulate one of these boards using the 74LS05 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.