The MC74F280N is a high-speed parity generator/checker that accepts nine bits of input data and detects whether an even or an odd number of theseinputs is HIGH. If an even number of inputs is HIGH, the Sum Even output is HIGH. If an odd number is HIGH, the Sum Even output is LOW. The Sum Odd output is the complement of the Sum Even output.
14 pin DIP. Manufactured by Motorola.