GR >> AT27C256R-45PU 
88669
AT27C256R-45PU
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 45NS 28DIP
Description original&Quality new original
554175
AT27C256R-45PU
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 45NS 28DIP
Description original&Quality new original