2 layers95.1 × 72.1 mm
Boards using the 74LS540PC
14 boardsBoards in 11 GitHub repositories, designed in KiCad, that use the 74LS540PC by Texas Instruments (0℃~+70℃ 15mA 4.75V~5.25V 74LS 75mA 8 Schmitt trigger Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers). See how each wires it, with its parts, size, README and files; the 74LS540PC’s symbol, footprint and pinout are on its own page.
- 2 layers100 × 100 mm
- 2 layers94 × 75.6 mm
- 2 layers
Diode matrix rom
charlespax/macroprocessor
A project to create a microprocessor optimized for human visual verification
31 partsMIT - 2 layers178.4 × 115.6 mm
CR2021 CPU v2
derpflanz/castle-runner
This is my hobby project in making a 6502 based 8-bit computer from scratch. The end goal is to have it run Castle Runner, a game I made many moons ago.
47 parts - 2 layers
- 2 layers90.8 × 53.4 mm
- 2 layers99.1 × 99.1 mm
Connector test stand
L0czek/rakieta
The starter board provides the ignition impulse to fire the engine. It includes an I2C IO expander and an 8-channel digital comparator to require a correct safety byte/address to be present before firing.
86 parts - 4 layers52 × 72 mm
82C55 GPIO Unit
oberrow/i8088-computer
Code for an i8088-based non-PC compatible breadboard computer
11 parts1MIT - 4 layers96 × 70 mm
SPI Unit
oberrow/i8088-computer
Code for an i8088-based non-PC compatible breadboard computer
29 parts1MIT - 2 layers58 × 47 mm
Timer Unit
oberrow/i8088-computer
Code for an i8088-based non-PC compatible breadboard computer
12 parts1MIT - 2 layers63.8 × 77.6 mm
UART Unit
oberrow/i8088-computer
Code for an i8088-based non-PC compatible breadboard computer
13 parts1MIT - 2 layers149.9 × 139.7 mm
GIMIX intelligent 3 port Serial
roberto314/GIMIX_reproduction
Reproducing SS-50 and SS-30 cards and GIMIX Ghost Case and Mainboard
72 parts1BSD-2-Clause - 4 layers170.2 × 170.2 mm
ExpansionBoard
MicroLind-Developers/microlind-hw
Hardware repository for the microlind project
46 partsCERN-OHL-P-2.0