Pre-compare operation for compact low-leakage dual-compare cam cell

A system for pre-comparing data in a compare content addressable memory (“CAM”) device having one or more comparators in a computing environment, comprising one or more computers with executable instructions that when executing cause the system to:

• compare a first compare input and a second compare input of a column in a compare content addressable memory (“CAM”) device;
• generate a pre-compare signal based on comparing the first compare input and the second compare input;
• compare a first polarity of the first compare input with a first polarity of a storage node data;
• generate a compare output of the first compare input based on a logic state of the pre-compare signal;
• and
• generate a first compare match based on the compare output and a second compare match based on the pre-compare signal.

A computer program product for pre-comparing data in a dual compare content addressable memory (“CAM”) device having one or more comparators in a computing environment, the computer program product comprising one or more computer readable storage media, and program instructions collectively stored on the one or more computer readable storage media, the program instruction comprising:

• program instructions to compare a first compare input and a second compare input of a column in a dual compare content addressable memory (“CAM”) device;
• program instructions to generate a pre-compare signal based on comparing the first compare input and the second compare input;
• program instructions to compare a first polarity of the first compare input with a first polarity of a storage node data;
• program instructions to generate a compare output of the first compare input based on a logic state of the pre-compare signal;
• and
• program instructions to generate a first compare match based on the compare output and a second compare match based on the pre-compare signal.