name: PCF8582C-2 function: I2C 256x8-bit CMOS EEprom package: DIP8,8 manufacturer: Philips +--()--+ a0 | 1 8| Vdd a1 | 2 7| ptc a2 | 3 6| scl Vss | 4 5| sda +------+ This pinout came from the Chipdir: http://www.chipdir.org/