GR >> AT27BV512-12RC 
89151
AT27BV512-12RC
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 120NS 28SOIC
Description original&Quality new original
553871
AT27BV512-12RC
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 120NS 28SOIC
Description original&Quality new original