28 open source boards using the 74LS00
Real designs built with the 74LS00, 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.
Vic2020mainboard
danwerner21
357.8 × 124.5 mm127 parts2LNo license78
TI99 22
350 × 224.3 mm242 parts2LNo license50
Dragon64
333.2 × 205.9 mm220 parts2LNo license34
Odyssey 2 rgb
abzman
83.3 × 78.2 mm70 parts2LUnlicense19
AmigaSID
call286
130.1 × 67.5 mm43 parts2LNo license14
Front panel 9602
ibm2030
283 × 96 mm157 parts2LNo license13
Junior interface
laurent-fr
217.2 × 113 mm116 parts2LCC-BY-NC-4.013
Next-FDC
OldWer
96.7 × 81.5 mm48 parts2LCC0-1.06
MetaphoricV2
204.5 × 138 mm140 parts2LCC0-1.05
ESP32TI99 22
244 × 244 mm257 parts4LNo license4
BitStack-DigiTrainer
RetroStack
320 × 150 mm262 parts2LMIT2
Chessmate 6530
inmbolmie
50 × 85 mm7 parts2LGPL-3.02
Lomax ColorMagic Redux
RichCini
254 × 137.7 mm148 parts4LNo license1
AVR/ArduinoAPL1
acwright
150 × 100 mm44 parts2LCERN-OHL-P-2.01
Backup
333.2 × 205.9 mm218 parts2LNo license34
ASCII keyboard
306 × 145 mm124 parts2LNo license13
Backup1
333.2 × 205.9 mm218 parts2LNo license34
128 X 16 RAM V4 FINAL
180 × 95 mm108 parts4LNo license13
Ttl to composite video generator
59.7 × 37.5 mm29 parts2LUnlicense19
ASCII keyboard 3
297 × 145 mm77 parts2LNo license13
RC201-68000 CPU 2
MarkD833
101.6 × 53.3 mm37 parts4LCC-BY-NC-4.08
Octal display
140 × 100 mm69 parts2LNo license13
Educ 8 timing
220 × 159.9 mm45 parts4LNo license13
68000 CPU Board
101.6 × 53.3 mm32 parts4LCC-BY-NC-4.08
256 word memory
220 × 160 mm36 parts2LNo license13
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 74LS00 in open source designs
The gallery holds 28 open source boards using the 74LS00 from 15 GitHub repositories; a typical one measures about 220 × 137.8 mm and carries around 74 components.
79% are two-layer designs, the rest use four layers or more, and 25% carry an open source license.
The most starred is Vic2020mainboard by danwerner21.
Parts used alongside the 74LS00
Microcontrollers on boards using the 74LS00
What boards using the 74LS00 are built for
74LS00: common questions
Where can I find a 74LS00 reference design?
Each of the 28 boards on this page is a real design using the 74LS00. 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 74LS00?
The 74LS04, 74LS138, 74LS08, 74LS244 and 74LS245 appear in the most repositories here.
Which microcontrollers do boards using the 74LS00 use?
Most are built on AVR/Arduino (1) and ESP32 (1).
How big is a typical board using the 74LS00?
The median is 220 × 137.8 mm, and 79% are two-layer designs.
What is the most popular open source board using the 74LS00?
By GitHub stars, Vic2020mainboard by danwerner21, with 78 stars.
Can I simulate one of these boards using the 74LS00 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.