DM74AS280M ,9-Bit Parity Generator/CheckerDM74AS280 9-Bit Parity Generator/CheckerOctober 1986Revised March 2000DM74AS2809-Bit Parity Generat ..
DM74AS280N ,9-Bit Parity Generator/CheckerFeaturesThese universal, 9-bit parity generators/checkers utilize ■ Generates either odd or even pa ..
DM74AS286M ,9-Bit Parity Generator/Checker With Bus-Driver Parity I/O PortDM74AS286 9-Bit Parity Generator/Checker with Bus-Driver Parity I/O PortOctober 1986Revised April 2 ..
DM74AS286M ,9-Bit Parity Generator/Checker With Bus-Driver Parity I/O PortFeaturesThese universal, 9-bit parity generators/checkers utilize
DM74AS280M-DM74AS280N
9-Bit Parity Generator/Checker
DM74AS280 9-Bit Parity Generator/Checker October 1986 Revised March 2000 DM74AS280 9-Bit Parity Generator/Checker General Description Features These universal, 9-bit parity generators/checkers utilize � Generates either odd or even parity for nine data lines advanced Schottky high performance circuitry and feature � Inputs are buffered to lower the drive requirements odd/even outputs to facilitate operation of either odd or � Can be used to upgrade existing systems using MSI even parity applications. The word length capability is eas- parity circuits ily expanded by cascading. � Cascadable for N-bits The DM74AS280 can be used to upgrade the performance � Advanced oxide-isolated, ion-implanted Schottky of most systems utilizing the ’180 parity generator/checker. TTL process Although the DM74AS280 is implemented without � Switching specifications at 50 pF expander inputs, the corresponding function is provided by the availability of an input at pin 4 and no internal connec- � Switching specifications guaranteed over full tion at pin 3. This permits the DM74AS280 to be substi- temperature and V range CC tuted for the ’180 in existing designs to produce identical function even if DM74AS280s are mixed with existing ’180s. Ordering Code: Order Number Package Number Package Description DM74AS280M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74AS280N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Number of Inputs (A thru I) Outputs that are HIGH ∑Even ∑Odd 0, 2, 4, 6, 8 H L 1, 3, 5, 7, 9 L H L = LOW State H = HIGH State © 2000 DS006303
