This is still a prototype that we’ve used for about six months now without any problems, so it’s probably time to move it into production. It’s perfect for the 6809 system that has everything!
Features
- SS-50C compatible.
- Unused addressing lines can be disabled, so this will work in a system without all 20 address lines.
- Entire banks are enabled/disabled via DIP switches.
- Two 512K fast static RAM chips provide the storage.
- Very low power consumption.
- Easily runs at 2 MHz bus speeds.