4Kb SPI EEPROM, 512x8, SOIC-8, 1MHz, 475ns
512 X 8 SPI BUS SERIAL EEPROM, PDIP8, 0.300 INCH, PLASTIC, DIP-8
512 X 8 SPI BUS SERIAL EEPROM, PDIP8, 0.300 INCH, PLASTIC, MS-001, DIP-8
