74AC280 ,9-Bit Parity Generator/Checkerapplicationseven or an odd number of these inputs is HIGH. If an even
74AC280
9-Bit Parity Generator/Checker
74AC280 9-Bit Parity Generator/Checker November 1988 Revised November 1999 74AC280 9-Bit Parity Generator/Checker General Description Features The AC280 is a high-speed parity generator/checker thatI reduced by 50% CC accepts nine bits of input data and detects whether an 9-bit width for memory applications even or an odd number of these inputs is HIGH. If an even AC280: 5962-92201 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 out- put. Ordering Code: Order Number Package Number Package Description 74AC280SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow Body 74AC280SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbols Connection Diagram IEEE/IEC Truth Table Pin Descriptions Number of Outputs Pin Names Description HIGH Inputs ∑ Even ∑ Odd I –I Data Inputs I –I 0 8 0 8 ∑ Odd Parity Output Ο 0, 2, 4, 6, 8 H L ∑ Even Parity Output Ε 1, 3, 5, 7, 9 L H H = HIGH Voltage Level L = LOW Voltage Level FACT is a trademark of . © 1999 DS009955
