GR >> AT27C256R-45RI 
89351
AT27C256R-45RI
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 45NS 28SOIC
Description original&Quality new original
554177
AT27C256R-45RI
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 45NS 28SOIC
Description original&Quality new original