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SN54/74LS280
9-BIT ODD/EVEN PARITY
GENERATORS/CHECKERS
The SN54 / 74LS280 is a Universal 9-Bit Parity Generator / Checker. It fea-
tures odd / even outputs to facilitate either odd or even parity. By cascading,
the word length is easily expanded. 9-BIT ODD / EVEN PARITY
The LS280 is designed without the expander input implementation, but the GENERATORS/ CHECKERS
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 LOW POWER SCHOTTKY
LS180 which results in improved performance. The LS280 has buffered
inputs to lower the drive requirements to one LS unit load.