X28HC256SM-12 Similar

X28HC256SM-12 Datasheet and X28HC256SM-12 manual

Manufacturer : Xicor 

Packing : SOIC28P 

Pins : 28 

Temperature : Min -55 °C | Max 125 °C

Size : 120 KB

Application : 256K (32K x 8bit) 5 volt, byte alterable E2PROM 

X28HC256SM-12 PDF Download