2 layers99.1 × 49.9 mm
Z80-cpu
ChartreuseK/RC2014-Z80-CLK-RES
Simple z80 board with onboard clock generator and reset circuitry for RC2014 bus.
26 partsGPL-3.0
Boards using the 74HCT393D
4 boardsBoards in 4 GitHub repositories, designed in KiCad, that use the 74HCT393D by Nexperia (-40℃~+125℃ 107MHz 15ns@4.5V,50pF 2 4 4.5V~5.5V 500mW 74HCT Asynchronous Asynchronous Divide-by-2 Falling Edge Programmable divide ratio、Reset function SO-14 Counters, Dividers ROHS). See how each wires it, with its parts, size, README and files; the 74HCT393D’s symbol, footprint and pinout are on its own page.
- 4 layers120.2 × 104.1 mm
- 4 layers161.3 × 101.9 mm
SBC6809System2Video
jimbro1000/SBC6809System2Video
This started out as a reimplementation of the Acorn system 2 teletext card. That design quickly went in the bin in favour or something closer to the video implementation of the BBC Model A/B or Amstrad CPC464.
82 parts - 2 layers117.3 × 43.4 mm
GMsbc01-CPU
GaryMacMinn/65C02-Retro-Computer
A retro computer system based on the 65C02 CPU in a modular form.
19 partsMIT