GR >> AT27BV256-12RI 
89123
AT27BV256-12RI
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 120NS 28SOIC
Description original&Quality new original
553835
AT27BV256-12RI
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 120NS 28SOIC
Description original&Quality new original