Circuit for comparing magnitudes of binary signals

Details Circuit for comparing magnitudes of binary signals Circuit for comparing magnitudes of binary signals

G - Physics

06

F

328/128

G06F 7/02 (2006.01)

Patent

CA 1285034

Abstract of the Disclosure A circuit for comparing first and second binary signals comprises a first n-channel MOS transistor having a gate electrode to which the first binary signal is applied, a second n-channel MOS transistor having a source electrode connecting to a source electrode of the first MOS transistor, and a gate electrode to which a third binary signal different in logical level from the first binary signal is applied, and a third n-channel MOS transistor having a source electrode connecting to a drain electrode of the first MOS transistor, and a gate electrode to which the second binary signal is applied. A fourth n-channel MOS transistor has a source electrode connecting to a drain electrode of the second MOS transistor, and a gate electrode to which a fourth binary signal different in logical level from the second binary signal is applied, an output port connected to a drain electrode of the third MOS transistor and a drain electrode of the fourth MOS transistor, a fifth n-channel MOS transistor having a drain electrode connecting to the drain electrode of the first MOS transistor and the source electrode of the third MOS transistor, a gate electrode to which the third binary signal is applied, and a source electrode maintained at ground, and an element for supplying a supply voltage to the drain electrode of the second MOS transistor and the source electrode of the fourth transistor.

574112

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