GR >> AT27C512R-45JC 
89416
AT27C512R-45JC
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 45NS 32PLCC
Description original&Quality new original
554267
AT27C512R-45JC
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 45NS 32PLCC
Description original&Quality new original