4 open source boards using the 74HC540
Real designs built with the 74HC540, 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.
8b alu slice
tmarhguy
235 × 202.4 mm1088 parts4LSHL-2.12
WildWillyR5Hardware
dkjonas
94.4 × 92.2 mm52 parts4LNo license1
AVR/ArduinoCFT DFP Board
alexiosc
233.4 × 280 mm186 parts2LGPL-3.06
AVR/ArduinoDebugging Front Panel
280 × 164.6 mm165 parts2LGPL-3.06
The 74HC540 in open source designs
The gallery holds 4 open source boards using the 74HC540 from 3 GitHub repositories; a typical one measures about 234.2 × 183.5 mm and carries around 176 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is CFT DFP Board by alexiosc.
Microcontrollers on boards using the 74HC540
What boards using the 74HC540 are built for
74HC540: common questions
Where can I find a 74HC540 reference design?
Each of the 4 boards on this page is a real design using the 74HC540. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
Which microcontrollers do boards using the 74HC540 use?
Most are built on AVR/Arduino (2).
How big is a typical board using the 74HC540?
The median is 234.2 × 183.5 mm, and 50% are two-layer designs.
What is the most popular open source board using the 74HC540?
By GitHub stars, CFT DFP Board by alexiosc, with 6 stars.
Can I simulate one of these boards using the 74HC540 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.