GR >> AT27C256R-90TC 
89372
AT27C256R-90TC
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 90NS 28TSOP
Description original&Quality new original
554212
AT27C256R-90TC
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 90NS 28TSOP
Description original&Quality new original