GR >> AT27C256R-12PI 
89333
AT27C256R-12PI
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 120NS 28DIP
Description original&Quality new original
554156
AT27C256R-12PI
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 120NS 28DIP
Description original&Quality new original