name: x25401 function: 16*16 SPI Serial AUTOSTORE NOVRAM package: DIP,SOIC,8 manufacturer: Xicor +--()--+ *cs | 1 8| Vcc sck | 2 7| *as si | 3 6| *recall so | 4 5| Vss +------+ This pinout came from the Chipdir: http://www.chipdir.org/