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Chessmate RAM

inmbolmie·chessmate·Kicad/P2111_SRAM/chessmate_RAM.kicad_pcb

Chessmate RAM PCB layout, top view — open source board by inmbolmie
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About the Chessmate RAM PCB

Chessmate RAM is an open source PCB design by inmbolmie, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 42 × 65 mm, with 3 components from 2 distinct parts.

Other key parts include the 74LS04. By type, the board carries 2 capacitors and 1 IC.

It belongs with the retro computing designs in this gallery.

From the project

Custom adapters designed to replace the P2111 SRAM and MOS 6530-024 RRIOT vintage chips used in the Commodore Chessmate chess computer.

This repository describes custom boards designed to replace the P2111 SRAM and MOS 6530-024 RRIOT vintage chips used in the Commodore Chessmate chess computer.

The Commodore Chessmate is a vintage chess computer released in 1978 based on MicroChess by Peter Jennings. It was one of the first commercialy available dedicated chess computers. https://www.chessprogramming.org/Commodore_ChessMate

Chessmate RAM, from the project README
From the project README

Main components on the Chessmate RAM

74LS04

Chessmate RAM bill of materials (BOM)

3 components, 2 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74LS04
U1
2
100NF
100nF
C1, C2

Chessmate RAM design files

The KiCad project lives in the inmbolmie/chessmate repository on GitHub; these links point at the commit this page was built from.

Chessmate RAM: common questions

How big is the Chessmate RAM PCB?

The Chessmate RAM measures 42 × 65 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Chessmate RAM?

3 components, from 2 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Chessmate RAM design files?

From the inmbolmie/chessmate repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Chessmate RAM design in my own project?

Yes, under the terms of its GPL-3.0 license, which inmbolmie chose for the repository.

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