TexElec's Commodore 64/128 Cartridge / Expansion Port Prototype Card w/ EEPROM

Description: TexElec's Commodore 64/128 Cartridge / Expansion Port Prototype Card w/ EEPROM v1 This board was designed for DIY projects on the Commodore 64 or 128 cartridge/expansion port. Initially, we planned to only have a breadboard, but we decided it might be handy to also have an EEPROM chip present to run code for your custom hardware. All 44 pins are Exposed on 2×22 2.54mm/0.1″ pitch header 578 Pins for Prototype Use 64k EEPROM with eight 8K selectable banks Reset Button Dip Switches to select or Disable EPROM* Dip Switches 1-3 selects the bank (000=1, 001=2 … 111=8, etc) Dip Switches 4 & 5 toggle the /Game and /EXROM lines on the cartridge port Dip Switches 6 & 7 toggle the /ROML and /ROMH lines on the cartridge port *If you do not wish to use the ROM simply set all dip switch positions to off and it will be ignored. Currently, the EEPROM must be programmed externally. In a future revision, we might tie a line from the EEPROM to the Commodore bus if needed to program the IC directly with a custom program. There is one issue on the layout which will be fixed in the next revision of the board. We used a non-standard layout for the reset button, and addressed the issue by using a button which would work in the footprint we used. Please note, the boards may have different parts than pictured but retain the same functionality. Over time, some parts are discontinued, or change colors and we update them as needed. Please ask any questions you have before bidding/buying, I do my best to represent the items I list correctly and don't want anyone, myself included, to have any surprises. Please be sure to see our other listings. We will be selling a lot of our excess electronics, vacuum tubes, electronic parts, computer parts, music equipment, and much more. Thanks for looking and happy bidding!

Price: 19.99 USD

Location: Aledo, Texas

End Time: 2024-03-03T02:28:25.000Z

Shipping Cost: N/A USD