GR >> AT27C256R-45PC 
89348
AT27C256R-45PC
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 45NS 28DIP
Description original&Quality new original
554173
AT27C256R-45PC
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 45NS 28DIP
Description original&Quality new original