Tag: 2364

2 matching upgrades

Showing 2 products.

StatusProductWhat it doesCompatibilityLinks
AvailableChecked Jul 25, 20262364-to-27Cxxx EPROM Adapterby Retro Electronics

Replaces a Commodore 2364 ROM with a readily available 27C64, 27C128, 27C256, or 27C512 device.

The product selector offered all three build levels on 2026-07-25. The included W27C512 option is blank; the buyer must provide and program an appropriate ROM image.

Sources
  • Commodore 64 Exact model
  • Commodore 128 Exact model
AvailableChecked Jul 24, 2026Open2327 ROM Adapter Familyby SukkoPera / The Brewing Academy

Replaces a 24-pin 2364 ROM with a programmable 27xxx-family EPROM or EEPROM and optionally switches among several ROM images.

The Atari-specific Brewing Academy page exposed an Add to Cart path on 2026-07-24, and the open design includes fabrication files. The assembled adapter is configured for a 2764; other capacities need the documented resistor configuration and optional switches. The open project says only the W27C512 configuration was thoroughly tested. Supply legally obtained, exactly sized ROM images and verify socket orientation.

Sources
  • Atari 600XL Stated family
  • Atari 800XL Stated family
  • Commodore 64 Exact model
  • Commodore VIC-20 Exact model