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SN74LS85

ON Semiconductor
Part Number SN74LS85
Manufacturer ON Semiconductor
Description 4-Bit Magnitude Comparator
Published May 28, 2005
Detailed Description SN74LS85 4−Bit Magnitude Comparator The SN74LS85 is a 4-Bit Magnitude Camparator which compares two 4-bit words (A, B),...
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SN74LS85
SN74LS85

Overview
SN74LS85 4−Bit Magnitude Comparator The SN74LS85 is a 4-Bit Magnitude Camparator which compares two 4-bit words (A, B), each word having four Parallel Inputs (A0 −A3, B0 −B3); A3, B3 being the most significant inputs.
Operation is not restricted to binary codes, the device will work with any monotonic code.
Three Outputs are provided: “A greater than B” (OA> B), “A less than B” (OA< B), “A equal to B” (OA= B).
Three Expander Inputs, IA> B, IA< B, IA= B, allow cascading without external gates.
For proper compare operation, the Expander Inputs to the least significant position must be connected as follows: IA< B= IA> B = L, IA= B = H.
For serial (ripple) expansion, the OA> B, OA< B and OA= B ...


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