AT >> AT27C256R-70PA 
90915
AT27C256R-70PA
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 70NS 28DIP
Description original&Quality new original
554195
AT27C256R-70PA
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 70NS 28DIP
Description original&Quality new original