The LiNC80 SBC1 has an on-board connector designed to connect to a card-edge connector for rapid and accessible swapping of ROM. This ROM Cartridge Kit is what plugs into that connector!
The card is designed to be large enough to comfortably insert and remove. It has a 28pin location for either a direct soldered or socketed ROM chip, and a central mounting hole for encased cartridges. The two two-position jumper locations allow for any ROM chip size between 16 and 64kByte, taking advantage of the LiNC80 ROM Bank select signals for ROM sizes above 16kByte. If your ROM application fits in a 4k or 8k chip, it’s naturally no problem to use chips of those sizes, as the pinout on the connector is JEDEC compliant.
Available as blank PCB only. If you wish to add DIP or ZIF socket to your ROM cartridge, you will have to provide the socket yourself. However, the PCB has been designed with over-sized holes, so using a 3M 28pin ZIF socket is possible. Note that the PCB-mounted switches shown in the picture below are not included.
As noted on the silk-screen: select (or solder-bridge) jumper positions according to the size of ROM chip installed on the card. When installing a 4k, 8k or 16k ROM chip (C128 and smaller), both jumpers must be set to PULLUP for proper operation. If using a 32k ROM chip (C256), the ROS1 jumper needs to be set to PULLUP to correctly connect the Vpp pin to VCC. For a 64kByte C512 chip, it is recommended to use the ROSx-position on both jumpers. For more information about the ROS-signals, refer to the configuration register documentation in the LiNC80 SBC1 onboard devices guide.
To use this cartridge PCB with your own design, please refer to the LiNC80 SBC1 ROM Slot documentation for information about the pinout. Pin numbering on the card-edge is odd-even, as presented for the 30-pin header connector, with odd-numbered pins on the top silkscreened side.