P4C1256-25DM Similar

P4C1256-25DM Datasheet and P4C1256-25DM manual

Manufacturer : Performance Semiconductor 

Packing : CDIP 

Pins : 28 

Temperature : Min -55 °C | Max 125 °C

Size : 97 KB

Application : "25 ns, static CMOS RAM, 32 K x 8 high speed" 

P4C1256-25DM PDF Download