GR >> AT27C256R-15RI 
89343
AT27C256R-15RI
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 150NS 28SOIC
Description original&Quality new original
554167
AT27C256R-15RI
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 150NS 28SOIC
Description original&Quality new original