2 layers245.1 × 160 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
139 parts326
Boards using the 74HC377D
25 boardsBoards in 17 GitHub repositories, designed in KiCad, that use the 74HC377D by Nexperia (-40℃~+125℃ 1 12ns 16ns@4.5V,50pF 2V~6V 3.5pF 3ns 4mA 4mA 74HC Series 77MHz 8 8uA D-Type Enable Rising Edge SOIC-20-300mil Flip Flops ROHS). See how each wires it, with its parts, size, README and files; the 74HC377D’s symbol, footprint and pinout are on its own page.
- 2 layers208.9 × 170.8 mm
8-Bit CPU 32k
slu4coder/Minimal-UART-Computer-3
Version 3 of my educational DIY TTL computer built around a UART serial interface - now with blinkenlights!
207 parts54 - 4 layers158.8 × 104.1 mm
- 2 layers
BreadBin
c0pperdragon/BreadBin
A CPU made of 7400 logic on breadboards - inside a bread bin ;-)
45 parts18 - 4 layers100 × 100 mm
- 4 layers220 × 170 mm
Arpeggiator
EwoudVV/arpeggiator
12-note analog arpeggiator with a 1/2/3 octave range, custom pcb and printed case
360 parts3 - 2 layers99.1 × 69.9 mm
FC UNROM512-PRGRAM
ponchick/FC-UNROM512-PRGRAM
UNROM512 + PRG RAM Famicom cartridge PCB
35 parts3CERN-OHL-P-2.0 - 2 layers160 × 140 mm
8-Bit CPU
otterbox901/8-Bit_CPU
Microcoded 8-bit CPU built from 24 74HC-series ICs: a custom 10-instruction ISA, 4 general-purpose registers, and an EEPROM-driven control unit.
69 parts2 - 2 layers99.1 × 60.1 mm
- 4 layers140 × 110 mm
- 4 layers215.3 × 96.8 mm
Zak181
agkaminski/ZAK181
Improved ZAK180: DIY all-in-keyboard computer featuring Z180 and floppy drive.
123 parts - 2 layers110 × 110 mm
Custom cpu
axelo/custom-cpu
Cutom CPU built from 7400-series integrated circuits (and FLASH roms)
47 partsMIT - 2 layers139.7 × 55.9 mm
- 2 layers54 × 66 mm
Vectrex cartridge-512k
hugonl31/Vectrex_Cart_PCB
Homemade Vectrex cartridges: KiCad boards (64K, 8K GCE, 512K flash) with Gerbers, renders and schematics, and a 3D-printed shell
18 parts - 2 layers231.8 × 158.1 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
123 parts326 - 4 layers100 × 100 mm
- 4 layers100 × 100 mm
- 4 layers100 × 100 mm
- 2 layers100 × 100 mm
- 2 layers100 × 100 mm
- 2 layers39.4 × 52.1 mm
- 2 layers135 × 150 mm
- 2 layers100 × 60 mm
- 2 layers75 × 28 mm
