GR >> AT27C256R-15PC 
89340
AT27C256R-15PC
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 150NS 28DIP
Description original&Quality new original
554164
AT27C256R-15PC
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 150NS 28DIP
Description original&Quality new original