US Patent 12094568 Content addressable memory for large search words

A memory array is arranged to store data words in respective sets of TCAM cells, where each TCAM cell is configured to store ternary states of a bit of the stored word. A circuit to select a set of TCAM cells in the set of TCAM cells, such as decoders and drivers for word lines, bit lines, block select gates. A circuit to apply an input search word to the TCAM cells in the selected set of TCAM cells, such as a search word buffer or driver on one of word lines or bit lines for the array. A circuit to generate an output indicating similarity of the stored word in the selected set of TCAM cells to the input search word, based on mismatch or possible mismatch of more than one bit of the search word.