GR >> AT27C512R-90JI 
89437
AT27C512R-90JI
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 90NS 32PLCC
Description original&Quality new original
554302
AT27C512R-90JI
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 90NS 32PLCC
Description original&Quality new original