GR >> AT27C256R-55TC 
89360
AT27C256R-55TC
Atmel
Quantity 20000
Packaging IC OTP 256KBIT 55NS 28TSOP
Description original&Quality new original
554188
AT27C256R-55TC
Microchip Technology
Quantity 9000
Packaging IC OTP 256KBIT 55NS 28TSOP
Description original&Quality new original