GR >> AT27C512R-15PI 
89411
AT27C512R-15PI
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 150NS 28DIP
Description original&Quality new original
554261
AT27C512R-15PI
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 150NS 28DIP
Description original&Quality new original