GitHub - Wh1teRabbitHU/EEPROMAdapter: This adapter can read and write AT28C64 and AT28C256 EEPROM chips. Creating converter PCB for this task recommended
AT28C256 | Microchip Technology
28Pin NEW EEPROM IC ATMEL DIP-28 AT28C256-15PU IC | eBay
6502.org • View topic - Writing to a parallel EEPROM
AT28C256-20PC by ATMEL - Buy or Repair at Radwell - Radwell.com
ATMEL AT28C256-15UI 32K x 8 EEPROM 150NS CPGA28 X 1PC | eBay
Help programming an EEPROM (AT28C256) | Electronics Forums