X28HC64PI-70 Datasheet and X28HC64PI-70 manual

Manufacturer : Xicor 

Packing : DIP28P 

Pins : 28 

Temperature : Min -40 °C | Max 85 °C

Size : 123 KB

Application : "64K (8K x 8bit) 5 volt, byte alterable E2PROM" 

X28HC64PI-70 PDF Download