2 open source boards using the 74HC253
Real designs built with the 74HC253, 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.
K30 SBC
transistorfet
160 × 100 mm87 parts4LGPL-3.069AVR/Arduino
Debugging Front Panel
alexiosc
280 × 164.6 mm165 parts2LGPL-3.06
The 74HC253 in open source designs
The gallery holds 2 open source boards using the 74HC253 from 2 GitHub repositories; a typical one measures about 220 × 132.3 mm and carries around 126 components.
50% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is K30 SBC by transistorfet.
Microcontrollers on boards using the 74HC253
What boards using the 74HC253 are built for
74HC253: common questions
Where can I find a 74HC253 reference design?
Each of the 2 boards on this page is a real design using the 74HC253. 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 74HC253 use?
Most are built on AVR/Arduino (1).
How big is a typical board using the 74HC253?
The median is 220 × 132.3 mm, and 50% are two-layer designs.
What is the most popular open source board using the 74HC253?
By GitHub stars, K30 SBC by transistorfet, with 69 stars.
Can I simulate one of these boards using the 74HC253 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.