3 open source boards using the 7474N

Real designs built with the 7474N, 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.

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The 7474N in open source designs

The gallery holds 3 open source boards using the 7474N from 3 GitHub repositories; a typical one measures about 148.9 × 69.8 mm and carries around 38 components.

67% are two-layer designs, the rest use four layers or more, and 33% carry an open source license.

The most starred is LogicBoard tht2 by clydeshaffer.

Parts used alongside the 7474N

7432N 2

Microcontrollers on boards using the 7474N

AVR/Arduino 1

What boards using the 7474N are built for

7474N: common questions

Where can I find a 7474N reference design?

Each of the 3 boards on this page is a real design using the 7474N. 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 7474N use?

Most are built on AVR/Arduino (1).

How big is a typical board using the 7474N?

The median is 148.9 × 69.8 mm, and 67% are two-layer designs.

What is the most popular open source board using the 7474N?

By GitHub stars, LogicBoard tht2 by clydeshaffer, with 146 stars.

Can I simulate one of these boards using the 7474N 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.