Cam cell circuit of nonvolatile memory device and method of driving the same
OwnerMyung Su KIMinventor
Life of this patent
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Abstract
A Code Address Memory (CAM) cell circuit of a nonvolatile memory device includes a CAM cell unit configured to store data, a control circuit unit configured to read data stored in the CAM cell unit and to output data read as read data, and register units each configured to comprise a number of registers for storing the read data. Each of the registers is reset such that first data are latched when a reset operation is performed, and is configured to maintain the first data or newly latch second data in response to the read data.
Claims12
A Code Address Memory (CAM) cell circuit of a nonvolatile memory device, the circuit comprising:
- a CAM cell unit configured to store data;
- a control circuit unit configured to read data stored in the CAM cell unit and to output data read as read data;
- and
- register units each configured to comprise a number of registers for storing the read data,
- wherein each of the registers is reset such that first data are latched when a reset operation is performed, and is configured to maintain the first data or newly latch second data in response to the read data.
A CAM cell circuit of a nonvolatile memory device, the circuit comprising:
- a CAM cell unit configured to comprise a number of CAM cells;
- a control circuit unit configured to read data stored in the CAM cells and to output the data read as CAM cell data;
- and
- a number of registers configured to store the CAM cell data,
- wherein the registers are reset to store first data when a reset operation is performed.
A method of driving a CAM cell circuit of a nonvolatile memory device, the method comprising:
- resetting a number of registers and storing first data in the number of the registers;
- programming a CAM cell corresponding to a specific register in which second data will be stored, from among the registers;
- reading CAM cell data programmed into the CAM cell;
- and
- storing the second data in the specific register using the CAM cell data.
Dependencies are inferred from the claim text.