GR >> AT27C256R-15PI 
89341
AT27C256R-15PI
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 150NS 28DIP
Description original&Quality new original
554165
AT27C256R-15PI
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 150NS 28DIP
Description original&Quality new original