GR >> AT28HC256F-12SI 
88836
AT28HC256F-12SI
Atmel
Quantity 20000
Packaging IC EEPROM 256KBIT 120NS 28SOIC
Description original&Quality new original
554961
AT28HC256F-12SI
Microchip Technology
Quantity 9000
Packaging IC EEPROM 256KBIT 120NS 28SOIC
Description original&Quality new original