What is it?

OpenC16RamExpansion is an Open Hardware 64 Kb RAM Expansion board for the Commodore 16. It fits the cartridge/expansion port and instantly gives a C16 64 kilobytes of RAM, yielding the ability of running many games that were originally targeted at the Plus/4.

NOTE: AT THE MOMENT THIS EXPANSION DOES NOT WORK ON EVERY C16.

At least, not out-of-the-box, there are workarounds but they will all require internal modifications to your computer, which are either not reversible or not easy to perform. This is not due to a fault in my project, but rather to internal shortcomings of the original C-16 design. Feel free to give suggestions on the project page on github if you want. So BUY AT YOUR OWN RISK!

Note that these kits are not suitable for the faint-hearted, since they require soldering some surface-mount components (0805 package).

Why did you make it?

Adding RAM to your C-16 makes it (almost) like a Plus/4, yielding the ability to run software and games that was originally designed for the latter.

What makes it special?

OpenC16RamExpansion is Open Hardware. If you make any modifications to the board, please contribute them back.

What's included?

If you buy the component kit, this is what you will get:

• 4x100nF 0805 Capacitor
• 2x16-pin Socket
• 2x74LS257 IC (or 157, they are interchangeable)
• 2x18-pin Socket

Note that RAM chips are NOT included by default, if you need them, make sure to select them among the product options!

Disclaimer

OpenC16RamExpansion is provided to you 'as is' and without any express or implied warranties whatsoever with respect to its functionality, operability or use, including, without limitation, any implied warranties of merchantability, fitness for a particular purpose or infringement. We expressly disclaim any liability whatsoever for any direct, indirect, consequential, incidental or special damages, including, without limitation, lost revenues, lost profits, losses resulting from business interruption or loss of data, regardless of the form of action or legal theory under which the liability may be asserted, even if advised of the possibility or likelihood of such damages.

Get Help

If you need help or have questions, you can join the official Telegram group.