Patent ID: 6266262
Filing Date: 2001-07-24
Classification: G11C

Abstract:
In a content addressable memory (CAM) device that includes an array of CAM cells, a content addressable memory cell, comprising:a storage register that stores at least one data value;a compare circuit coupled to the storage register, having a data input and a comparand input, the compare circuit comparing the value at the data input to the value at the comparand input and generating a match indication when the values are the same; anda multiplexer (MUX) circuit coupled to the compare circuit, that receives a MUX circuit control signal and includes a first MUX circuit input and a second MUX circuit input, the MUX circuit coupling the first MUX circuit input to a first MUX circuit output when the control signal has a first value, and coupling the second MUX circuit input to the first MUX circuit output when the control signal has a second value, the first MUX circuit output being coupled to the comparand input of the compare circuit.