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 74HC4002D
7 boardsBoards in 6 GitHub repositories, designed in KiCad, that use the 74HC4002D by Nexperia (-40℃~+125℃ 1.5V~4.2V 1.9V、4.4V、5.9V 100mV、400mV、400mV 17ns@6V,50pF 2 2V~6V 2uA 4 5.2mA 5.2mA 500mV~1.8V 74HC Series NOR Gate SO-14 Logic Gates ROHS). See how each wires it, with its parts, size, README and files; the 74HC4002D’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 - 2 layers100 × 100 mm
1802-Mini SPI DMA
arhefner/1802-Mini-SPI-DMA
SPI Expansion Board for the 1802/Mini Computer
44 parts2MIT - 2 layers299.7 × 198.1 mm
Cisc-8
nailed-barnacle/Cisc-8-ttl-processor
A cut-down version of the 8080 processor using HCTTL and including a discrete ALU and instruction decoder
319 parts1MIT - 2 layers100 × 100 mm
- 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 - 2 layers100 × 100 mm
