4 layers127.6 × 98 mm
Homebrew6502Project
snorklerjoe/useful6502
A homebrew 65c02s-based computer and custom operating system, with a handful of modern features.
275 parts1MIT
Boards using the 74ACT139PC
3 boardsBoards in 2 GitHub repositories, designed in KiCad, that use the 74ACT139PC by onsemi (-40℃~+85℃ 24mA 24mA 4.5V~5.5V 40uA 6ns@5V,50pF 74ACT Decoder Single Supply PDIP-16 Signal Switches, Multiplexers, Decoders ROHS). See how each wires it, with its parts, size, README and files; the 74ACT139PC’s symbol, footprint and pinout are on its own page.
- 2 layers100 × 100 mm
WD1771 Board
roberto314/Unicomp3
A modular 8-bit Computer able to recreate (nearly) every Retro computer of the late 70s to mid 80s.
122 partsBSD-2-Clause - 4 layers69.9 × 95.3 mm
RamBanks
snorklerjoe/useful6502
A homebrew 65c02s-based computer and custom operating system, with a handful of modern features.
102 parts1MIT