GR >> AT27C256R-12RI 
89335
AT27C256R-12RI
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 120NS 28SOIC
Description original&Quality new original
554158
AT27C256R-12RI
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 120NS 28SOIC
Description original&Quality new original