140 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.
Clock module
Ottoputer
61.4 × 53.3 mm26 parts2LGPL-3.01
8bit-Sch old-
Arvind595
246.4 × 185.4 mm277 parts4LNo license0
SBC 8080 ECB
sladek
160.5 × 100.2 mm111 parts2LNo license0
MC68000
bobofet2-1
432.5 × 139 mm59 parts2LNo license0
BE6502 Clock
tebl
45.7 × 99.1 mm29 parts2LCERN-OHL-1.2128
St296n 20741
schlae
137.4 × 199.1 mm269 parts4LNo license38
Backup
danwerner21
333.2 × 205.9 mm218 parts2LNo license34
Plusd no route
alvaroalea
106.7 × 83.8 mm47 parts2LNo license24- schematic only · 26 parts
Spies-Labs-NicePrint-Card
markadev
26 parts2LNo license23 
ALU0
Left-Hand
100 × 100 mm66 parts2LNo license19
Coleco original main only
sparkletron
168.4 × 214 mm182 parts2LMIT16
ASCII keyboard
ibm2030
306 × 145 mm124 parts2LNo license13
SAP-Plus Program Counter and Stack Pointer
TomNisbet
102 × 96 mm50 parts2LMIT10
AVR/ArduinoQ10MF BOARD
brijohn
281 × 79 mm44 parts2LNo license9
Svi coleco adapter
popolonx
250 × 100 mm70 parts2LNo license7
Display module
i-melnichenko
35.6 × 41.3 mm8 parts2LMIT5
ADV-16 CPU
abzman
228.1 × 172.7 mm111 parts2LUnlicense4
Z80-TAPE
dennis9819
160 × 100.3 mm104 parts2LNo license2
Processor attempt 1
ethanjamesauto
229.9 × 93.3 mm365 parts2LNo license1
GIMIX 6809 CPU Plus
roberto314
248.9 × 139.7 mm165 parts2LBSD-2-Clause1
HOL-1 TTL CPU - Clock board
agben
109.2 × 78.7 mm30 parts2LNo license1
MC68000-first
255.3 × 176 mm59 parts2LNo license0
Memory
jes
237.5 × 102.9 mm53 parts2LUnlicense301
AVR/ArduinoRC6502 Terminal
99.1 × 81.9 mm45 parts2LGPL-3.0192
Backup1
333.2 × 205.9 mm218 parts2LNo license34
Situacion1
188 × 153.7 mm45 parts2LNo license24- schematic only · 23 parts
Orange-Micro-Grappler+
23 parts2LNo license23 
128 X 16 RAM V4 FINAL
180 × 95 mm108 parts4LNo license13
AVR/ArduinoQX10 Titan QXPC Memory Board
254 × 63.5 mm40 parts2LNo license9
RC6802 CPU
99.1 × 99.1 mm53 parts2LCERN-OHL-1.26
Kicad LFO 1
promesoft
100 × 100 mm137 parts2LMIT2
Processor attempt 3
229.9 × 93.3 mm365 parts2LNo license1
CPU
KALTCHUK
99.7 × 69.9 mm29 parts2LNo license94
St225 20427
136.8 × 199.1 mm212 parts2LNo license38- schematic only · 22 parts
Orange-Micro-Grappler+-Rev-C
22 parts2LNo license23 
Ttl to composite video generator
59.7 × 37.5 mm29 parts2LUnlicense19
Browse boards by part
AMS1117-3.3 899USBLC6-2SC6 763RP2040 566W25Q128JVS 345AP2112K-3.3 273TL072 269TL074 250ESP32-S3-WROOM-1 229CH340C 221L7805 208Pico 19274HC595 185USBLC6-2P6 174LM358 16874LS04 160SRV05-4 158AP2112K-3.3TRG1 154ESP32-WROOM-32 15374LS245 14474LS138 138W25Q128JVSIQ 135Arduino_Nano_v3.x 13474LS00 133TP4056 130