XM20C64PM-55 Datasheet and XM20C64PM-55 manual

Manufacturer : Xicor 

Packing : PUMA66 module 

Pins : 66 

Temperature : Min -55 °C | Max 125 °C

Size : 65 KB

Application : 64K (8K x 8) High-speed AUTOSTORE NOVRAM 

XM20C64PM-55 PDF Download