GR >> AT27LV512A-90RI 
89547
AT27LV512A-90RI
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 90NS 28SOIC
Description original&Quality new original
554452
AT27LV512A-90RI
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 90NS 28SOIC
Description original&Quality new original