name: MC54F280 function: 9-bit parity generator/checker package: DIP,14 manufacturer: motorola added-by: spamdogg +--()--+ I6 | 1 14| Vcc I7 | 2 13| I5 NC | 3 12| I4 I8 | 4 11| I3 SigmaE | 5 10| I2 SigmaO | 6 9| I1 GND | 7 8| I0 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/