name: P4C188 function: 16k x 4 static cmos ram package: 19990708,22 manufacturer: Performance Semiconductor added-by: J.Frieling@gmx.de +--()--+ A0 | 1 22| Vcc A1 | 2 21| A13 A2 | 3 20| A12 A3 | 4 19| A11 A4 | 5 18| A10 A5 | 6 17| A9 A6 | 7 16| IO4 A7 | 8 15| IO3 A8 | 9 14| IO2 /CE |10 13| IO1 GND |11 12| /WE +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/