GR >> AT27LV512A-90TC 
89548
AT27LV512A-90TC
Atmel
Quantity 20000
Packaging IC OTP 512KBIT 90NS 28TSOP
Description original&Quality new original
554454
AT27LV512A-90TC
Microchip Technology
Quantity 9000
Packaging IC OTP 512KBIT 90NS 28TSOP
Description original&Quality new original