3 open source boards using the SN74HC138PWR

Real designs built with the SN74HC138PWR, 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 SN74HC138PWR in open source designs

The gallery holds 3 open source boards using the SN74HC138PWR from 2 GitHub repositories; a typical one measures about 150 × 90 mm and carries around 48 components.

100% use four copper layers or more, and 33% carry an open source license.

The most starred is Motherboard by Foosa7.

Microcontrollers on boards using the SN74HC138PWR

RP2040/RP2350 2

What boards using the SN74HC138PWR are built for

USB & debug tools 2

SN74HC138PWR: common questions

Where can I find a SN74HC138PWR reference design?

Each of the 3 boards on this page is a real design using the SN74HC138PWR. 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 SN74HC138PWR use?

Most are built on RP2040/RP2350 (2).

How big is a typical board using the SN74HC138PWR?

The median is 150 × 90 mm, and 0% are two-layer designs.

What is the most popular open source board using the SN74HC138PWR?

By GitHub stars, Motherboard by Foosa7, with 2 stars.

Can I simulate one of these boards using the SN74HC138PWR 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.