name:         CY7C150
function:     1K x 4 Static RAM
package:      DIP24 / SOIC24,24
manufacturer: Cypress

    +--()--+
 A3 | 1  24| Vcc
 A4 | 2  23| A2
 A5 | 3  22| A1
 A6 | 4  21| A0
 A7 | 5  20| *RS
 A8 | 6  19| *CS
 A9 | 7  18| *WE
 D0 | 8  17| *OE
 D1 | 9  16| D3
 O0 |10  15| D2
 O1 |11  14| O3
GND |12  13| O2
    +------+


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