GR >> AT27BV512-12RI 
89152
AT27BV512-12RI
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 120NS 28SOIC
Description original&Quality new original
553872
AT27BV512-12RI
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 120NS 28SOIC
Description original&Quality new original