2 open source boards using the 25LC640
Real designs built with the 25LC640, 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.
AVR/Arduino
Main PS Board
zachrjt
85 × 94.5 mm73 parts2LNo license2ESP8266
MB02A2
GOS2022
130 × 105 mm96 parts2LMIT0
The 25LC640 in open source designs
The gallery holds 2 open source boards using the 25LC640 from 2 GitHub repositories; a typical one measures about 107.5 × 99.8 mm and carries around 85 components.
100% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Main PS Board by zachrjt.
Microcontrollers on boards using the 25LC640
What boards using the 25LC640 are built for
25LC640: common questions
Where can I find a 25LC640 reference design?
Each of the 2 boards on this page is a real design using the 25LC640. 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 25LC640 use?
Most are built on AVR/Arduino (1) and ESP8266 (1).
How big is a typical board using the 25LC640?
The median is 107.5 × 99.8 mm, and 100% are two-layer designs.
What is the most popular open source board using the 25LC640?
By GitHub stars, Main PS Board by zachrjt, with 2 stars.
Can I simulate one of these boards using the 25LC640 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.