3 open source boards using the SN74HC138

Real designs built with the SN74HC138, 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 SN74HC138 in open source designs

The gallery holds 3 open source boards using the SN74HC138 from 1 GitHub repository; a typical one measures about 183.4 × 183.4 mm and carries around 49 components.

100% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.

The most starred is MicArray by dylanzodrow.

Microcontrollers on boards using the SN74HC138

AVR/Arduino 3

What boards using the SN74HC138 are built for

Robotics & motion 3

SN74HC138: common questions

Where can I find a SN74HC138 reference design?

Each of the 3 boards on this page is a real design using the SN74HC138. 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 SN74HC138 use?

Most are built on AVR/Arduino (3).

How big is a typical board using the SN74HC138?

The median is 183.4 × 183.4 mm, and 100% are two-layer designs.

What is the most popular open source board using the SN74HC138?

By GitHub stars, MicArray by dylanzodrow, with 3 stars.

Can I simulate one of these boards using the SN74HC138 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.