GR >> AT27C256R-12TC 
89336
AT27C256R-12TC
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 120NS 28TSOP
Description original&Quality new original
554159
AT27C256R-12TC
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 120NS 28TSOP
Description original&Quality new original