name: CY7C196 function: 64K x 4 Static RAM package: DIP28 / SOJ28 / LCC28,28 manufacturer: Cypress +--------+----------+----------+---------+ | 1 - NC | 8 - A12 | 15 - *WE | 22 - A0 | | 2 - A6 | 9 - A13 | 16 - I/O0| 23 - A1 | | 3 - A7 | 10 - A14 | 17 - I/O1| 24 - A2 | | 4 - A8 | 11 - A15 | 18 - I/O2| 25 - A3 | | 5 - A9 | 12 - *CE1| 19 - I/O3| 26 - A4 | | 6 - A10| 13 - *OE | 20 - *CE2| 27 - A5 | | 7 - A11| 14 - GND | 21 - NC | 28 - GND| +--------+----------+----------+---------+ This pinout came from the Chipdir: http://www.chipdir.org/