AT >> AT27C256R-70TU 
91497
AT27C256R-70TU
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 70NS 28TSOP
Description original&Quality new original
554204
AT27C256R-70TU
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 70NS 28TSOP
Description original&Quality new original