54AC280 Datasheet | National Semiconductor

.. 54AC280 9-Bit Parity Generator/Checker September 1998 54AC280 9-Bit Parity Generator/Checker General Description The ’AC280 is a high-speed parity generator/checker that accepts nine bits of input data and detects whether an even or an odd number of these inputs 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 plement of the Sum Even output. Features n ICC reduced by 50% n 9-bit width for memory applications n Standard Microcircuit Drawing (SMD) 5962-92201 Logic Symbols Connection Diagrams Pin Assignment for DIP and Flatpak DS100359-1 IEEE/IEC DS100359-2 Pin Assignment for LCC DS100359-4 Pin Names I0- I8 ∑O ∑E Description DS100359-3 Data Inputs Odd Parity Output Even Parity Output Truth Table Number of HIGH Inputs I0- I8 0, 2, 4, 6, 8 1, 3, 5, 7, 9 H = HIGH Voltage Level L = LOW Voltage Level Outputs ∑ Even ∑ Odd FACT™ is a trademark of Fairchild Semiconductor Corporation. © 1998 National Semiconductor Corporation DS100359 .national. Logic...