GR >> AT27LV512A-12RC 
89532
AT27LV512A-12RC
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 120NS 28SOIC
Description original&Quality new original
554431
AT27LV512A-12RC
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 120NS 28SOIC
Description original&Quality new original