name: CY7C197-D function: 256K x 1 Static RAM package: DIP24 / SOJ24,24 manufacturer: Cypress +--()--+ A0 | 1 24| Vcc A1 | 2 23| A17 A2 | 3 22| A16 A3 | 4 21| A15 A4 | 5 20| A14 A5 | 6 19| A13 A6 | 7 18| A12 A7 | 8 17| A11 A8 | 9 16| A10 Dout |10 15| A9 *WE |11 14| Din GND |12 13| *CE +------+ This pinout came from the Chipdir: http://www.chipdir.org/ name: CY7C197-P function: 256K x 1 Static RAM package: DIP24 / SOJ24,24 manufacturer: Cypress +--()--+ A0 | 1 24| Vcc A1 | 2 23| A17 A2 | 3 22| A16 A3 | 4 21| A15 A4 | 5 20| A14 A5 | 6 19| A13 A6 | 7 18| A12 A7 | 8 17| A11 A8 | 9 16| A10 Dout |10 15| A9 *WE |11 14| Din GND |12 13| *CE +------+ This pinout came from the Chipdir: http://www.chipdir.org/ name: CY7C197-V function: 256K x 1 Static RAM package: DIP24 / SOJ24,24 manufacturer: Cypress +--()--+ A0 | 1 24| Vcc A1 | 2 23| A17 A2 | 3 22| A16 A3 | 4 21| A15 A4 | 5 20| A14 A5 | 6 19| A13 A6 | 7 18| A12 A7 | 8 17| A11 A8 | 9 16| A10 Dout |10 15| A9 *WE |11 14| Din GND |12 13| *CE +------+ This pinout came from the Chipdir: http://www.chipdir.org/ name: CY7C197-L function: 256K x 1 Static RAM package: LCC28,28 manufacturer: Cypress +-------+----------+---------+---------+ | 1 - A0| 8 - A6 | 15 - *CE| 22 - A13| | 2 - A1| 9 - A7 | 16 - Din| 23 - A14| | 3 - A2| 10 - A8 | 17 - A9 | 24 - A15| | 4 - NC| 11 - Dout| 18 - NC | 25 - A16| | 5 - A3| 12 - NC | 19 - A10| 26 - NC | | 6 - A4| 13 - *WE | 20 - A11| 27 - A17| | 7 - A5| 14 - GND | 21 - A12| 28 - Vcc| +-------+----------+---------+---------+ This pinout came from the Chipdir: http://www.chipdir.org/