4 open source boards using the LM1889
Real designs built with the LM1889, 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.
ZX-Spectrum-Issue-4B
iansbremner
213.4 × 130.8 mm199 parts2LNo license22
ZX-Spectrum-48K-Issue-2
liveboxandy
213.1 × 130.1 mm191 parts2LCC0-1.02
ZX Spectrum 48K
Bambelweeny57
213.1 × 129 mm201 parts2LNo license1
ACE-COLOUR2
flypie
165.1 × 114.3 mm95 parts2LGPL-3.013
The LM1889 in open source designs
The gallery holds 4 open source boards using the LM1889 from 4 GitHub repositories; a typical one measures about 213.1 × 129.5 mm and carries around 195 components.
100% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is ZX-Spectrum-Issue-4B-KiCAD by iansbremner.
What boards using the LM1889 are built for
LM1889: common questions
Where can I find a LM1889 reference design?
Each of the 4 boards on this page is a real design using the LM1889. 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 LM1889?
The 4116, 4532, 74LS157, ROM and ULA appear in the most repositories here.
How big is a typical board using the LM1889?
The median is 213.1 × 129.5 mm, and 100% are two-layer designs.
What is the most popular open source board using the LM1889?
By GitHub stars, ZX-Spectrum-Issue-4B-KiCAD by iansbremner, with 22 stars.
Can I simulate one of these boards using the LM1889 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.