ROAM Dev Cartridge for the Commander X16

About

The ROAM Dev Cartridge for the Commander X16 provides developers and enthusiasts with the ability to experiment with bootable ROM applications, extra RAM, and non-volatile memory storage. The cartridge contains footprints for 32-pin NOR Flash ROMs up to 4Mbits (e.g. SST39SF040), 32-pin SRAMs up to 4Mbits (e.g. AS6C4008), and 5V I2C FRAM components in an SOIC-8 package (e.g. FM24C64B). The ROM footprint is large enough to accommodate a 32-pin ZIF socket.

Features

• NEW: Rev 0.20 contains a simple circuit that detects a ROM inserted backwards and can illuminates an LED if so.
• The onboard ROM is mapped to ROM banks 32-63 and the SRAM is mapped to ROM banks 64-95.
• Solder jumpers on the back of the cartridge allow for swapping these enabling ROM images to be uploaded to the SRAM which can then be booted as a cartridge.

Requires soldering one SMT component. All other components are through-hole. Pads finished using RoHS-compliant ENIG for superior connection quality and ease of soldering.

Notes:

1. Cartridge contains cutouts to fit a Famicom cartridge shell, the 1.6mm thick PCB and may not fit a cartridge shell designed for a 1.2mm PCB.