6 open source boards using the W27C512
Real designs built with the W27C512, 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.
65uino
AndersBNielsen
74.4 × 53.6 mm80 parts2LCustom license165
Betadisk clone
alvaroalea
99.7 × 149.9 mm83 parts2LNo license7
Zx81-external eprom
zxinfo-diy-electronics
60.3 × 52.4 mm13 parts2LNo license7
Zx interface-2-rom
39.4 × 50.1 mm8 parts2LNo license2
MEM
KALTCHUK
99.7 × 69.9 mm28 parts2LNo license94
RAM
TheJustMoose
99.1 × 99.1 mm26 parts2LNo license2
The W27C512 in open source designs
The gallery holds 6 open source boards using the W27C512 from 6 GitHub repositories; a typical one measures about 86.7 × 61.7 mm and carries around 27 components.
100% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.
The most starred is 65uino by AndersBNielsen.
What boards using the W27C512 are built for
W27C512: common questions
Where can I find a W27C512 reference design?
Each of the 6 boards on this page is a real design using the W27C512. 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 W27C512?
The 74LS139, 74LS32 and 74LS74 appear in the most repositories here.
How big is a typical board using the W27C512?
The median is 86.7 × 61.7 mm, and 100% are two-layer designs.
What is the most popular open source board using the W27C512?
By GitHub stars, 65uino by AndersBNielsen, with 165 stars.
Can I simulate one of these boards using the W27C512 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.