9-BIT ODD/EVEN PARITY
GENERATORS/CHECKERS
The SN54/74LS280 is a Universal 9-Bit Parity Generator /Checker. It features
odd/ even outputs to facilitate either odd or even parity. By cascading,
the word length is easily expanded.
The LS280 is designed without the expander input implementation, but the
corresponding function is provided by an input at Pin 4 and the absence of any
connection at Pin 3. This design permits the LS280 to be substituted for the
LS180 which results in improved performance. The LS280 has buffered
inputs to lower the drive requirements to one LS unit load.
• Generates Either Odd or Even Parity for Nine Data Lines
• Typical Data-to-Output Delay of only 33 ns
• Cascadable for n-Bits
• Can Be Used To Upgrade Systems Using MSI Parity Circuits
• Typical Power Dissipation = 80 mW
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