8 open source boards using the 74HCT273
Real designs built with the 74HCT273, 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.
Omega-Mainboard
skiselev
333.4 × 149.9 mm248 parts2LGPL-3.0456
AVR/Arduino8bit computer
vascofazza
297.2 × 180.3 mm327 parts2LMIT314
Tom80
anjennings
135 × 100 mm49 parts2LMIT93
LittleSixteen
SukkoPera
389 × 136.2 mm329 parts2LCustom license76
Omega-Mainboard
merlinkv
333.4 × 149.9 mm248 parts2LGPL-3.040
Tkmem128-ii
lrrosa
78.7 × 66 mm19 parts4LCERN-OHL-S-2.00
Rom cart
ThroatyMumbo
90.8 × 60 mm10 parts2LMIT15
MemExpansion
ja1umi
155 × 114 mm27 parts2LMIT10
The 74HCT273 in open source designs
The gallery holds 8 open source boards using the 74HCT273 from 8 GitHub repositories; a typical one measures about 226.1 × 125.1 mm and carries around 149 components.
88% are two-layer designs, the rest use four layers or more, and 88% carry an open source license.
The most starred is Omega-Mainboard by skiselev.
Parts used alongside the 74HCT273
Microcontrollers on boards using the 74HCT273
What boards using the 74HCT273 are built for
74HCT273: common questions
Where can I find a 74HCT273 reference design?
Each of the 8 boards on this page is a real design using the 74HCT273. 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 74HCT273?
The 74HCT04, SST39SF040, 74HCT157, 74HCT175 and 74HCT74 appear in the most repositories here.
Which microcontrollers do boards using the 74HCT273 use?
Most are built on AVR/Arduino (1).
How big is a typical board using the 74HCT273?
The median is 226.1 × 125.1 mm, and 88% are two-layer designs.
What is the most popular open source board using the 74HCT273?
By GitHub stars, Omega-Mainboard by skiselev, with 456 stars.
Can I simulate one of these boards using the 74HCT273 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.