name:         CY7C123
function:     256K x 4 Static RAM
package:      DIP24 / SOJ24,24
manufacturer: Cypress

    +--()--+
 A2 | 1  24| Vcc
 A3 | 2  23| A1
 A4 | 3  22| A0
 A5 | 4  21| *WE
 A6 | 5  20| *CS1
 A7 | 6  19| *OE
Vss | 7  18| Vcc
 D0 | 8  17| CS2
 D1 | 9  16| D3
 O0 |10  15| D2
 O1 |11  14| O3
Vss |12  13| O2
    +------+


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