GR >> AT27BV512-90RI 
89169
AT27BV512-90RI
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 90NS 28SOIC
Description original&Quality new original
553893
AT27BV512-90RI
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 90NS 28SOIC
Description original&Quality new original