name:         x22c10
function:     64*4 CMOS Nonvolatile Static RAM
package:      Plastic DIP,CERDIP,18
manufacturer: Xicor

       +--()--+
    nc | 1  18| Vcc
    a4 | 2  17| NC
    a3 | 3  16| a5
    a2 | 4  15| i/o4
    a1 | 5  14| i/o3
    a0 | 6  13| i/o2
   *cs | 7  12| i/o1
   Vss | 8  11| *we
*store | 9  10| *recall
       +------+


This pinout came from the Chipdir:
http://www.chipdir.org/

name:         x22c10
function:     64*4 CMOS Nonvolatile Static RAM
package:      SOIC,16
manufacturer: Xicor

       +--()--+
    a4 | 1  16| Vcc
    a3 | 2  15| a5
    a2 | 3  14| i/o4
    a1 | 4  13| i/o3
    a0 | 5  12| i/o2
   *cs | 6  11| i/o1
   Vss | 7  10| *we
*store | 8   9| *recall
       +------+


This pinout came from the Chipdir:
http://www.chipdir.org/