8 bit

46 boards

KiCad boards from 9 GitHub repositories tagged “8-bit”, the most starred first; open any of them in PCBKit.

2 layers
LM80C R6
leomil72/LM80C
A Z80-based homebrew computer withTMS9918, AY-3-8910, Z80 CTC, Z80 PIO, and Z80 SIO
153 parts123GPL-3.0
2 layers160 × 100 mm
CodyComputer
fjmilens3/cody-computer
Design files and source code for the Cody Computer.
59 parts64GPL-3.0
2 layers110 × 117 mm
Add sub
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
200 parts48MIT
2 layers150 × 100 mm
Memory loader
TomNisbet/sap-plus
Simple As Possible (SAP) 8-bit computer with a modular PCB design
66 parts11MIT
2 layers67.7 × 86.4 mm
Gbc cart reader
Zeal8bit/Zeal-GBC-Adapter
Gameboy (Color) Cartridge adapter for Zeal 8-bit Computer!
3 parts8CC0-1.0
2 layers47.2 × 70 mm
Zeal SNES Adapter
Zeal8bit/Zeal-SNES-Adapter
A simple SNES controller adapter for Zeal 8-bit Computer
14 parts8Apache-2.0
2 layers
ByteFrost
gilkeidar/ByteFrost
Software Tools for ByteFrost - A Breadboard 8-Bit Computer
36 parts5
2 layers323.8 × 91.1 mm
XPL-32-rounded
liaminventions/XPL-32
All of the code and experiments for the XPL-32 Homebrew 6502 Laptop. Licensed under GNU GPL V3.
81 parts4GPL-3.0
4 layers64 × 64 mm
Drive Circuit
omzz15/Magnetic-Memory
256 Byte Magnetic Memory Project
172 parts
2 layers53.3 × 29.6 mm
CodyCartridge
fjmilens3/cody-computer
Design files and source code for the Cody Computer.
8 parts64GPL-3.0
2 layers160.3 × 65 mm
CodyKeyboard
fjmilens3/cody-computer
Design files and source code for the Cody Computer.
33 parts64GPL-3.0
2 layers41 × 35.5 mm
Flags
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
26 parts48MIT
2 layers42.5 × 32.5 mm
Gate and 2in
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
9 parts48MIT
2 layers
Gate and 4in
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
10 parts48MIT
2 layers10.5 × 31 mm
Gate inv 1bit
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
4 parts48MIT
2 layers18.5 × 32.8 mm
Gate nand 2in
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
7 parts48MIT
2 layers23.3 × 32.5 mm
Gate nor 2in
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
7 parts48MIT
2 layers57.5 × 36 mm
Gate or 2in
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
9 parts48MIT
2 layers77.5 × 43 mm
Gate xnor 2in
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
19 parts48MIT
2 layers72 × 42.5 mm
Gate xor 2in
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
19 parts48MIT
2 layers101 × 68 mm
Led panel 1
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
131 parts48MIT
2 layers78.5 × 68.5 mm
Led panel 2
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
129 parts48MIT
2 layers43.5 × 50.5 mm
Led panel 3
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
35 parts48MIT
2 layers59 × 63 mm
Main control
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
42 parts48MIT