5 open source boards using the 74HC688
Real designs built with the 74HC688, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
AmigaSID
call286
130.1 × 67.5 mm43 parts2LNo license14
Zak180
agkaminski
188 × 128.3 mm128 parts4LCC-BY-NC-4.00
Registers
89Mods
209.6 × 108.5 mm98 parts4LMIT2
Control
209.6 × 108.5 mm81 parts4LMIT2
Memory
209.6 × 108.5 mm58 parts4LMIT2
The 74HC688 in open source designs
The gallery holds 5 open source boards using the 74HC688 from 3 GitHub repositories; a typical one measures about 209.6 × 108.5 mm and carries around 81 components.
80% use four copper layers or more, and 60% carry an open source license.
The most starred is AmigaSID by call286.
What boards using the 74HC688 are built for
74HC688: common questions
Where can I find a 74HC688 reference design?
Each of the 5 boards on this page is a real design using the 74HC688. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the 74HC688?
The 74HC00, 74HC02, 74HC244, 74HC245 and 74HC32 appear in the most repositories here.
How big is a typical board using the 74HC688?
The median is 209.6 × 108.5 mm, and 20% are two-layer designs.
What is the most popular open source board using the 74HC688?
By GitHub stars, AmigaSID by call286, with 14 stars.
Can I simulate one of these boards using the 74HC688 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.