Patent ID: 11875850
Assignee: MACRONIX INTERNATIONAL CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. The CAM memory device according to claim 4, further including a pre-charge control circuit coupled to the match lines,
wherein before searching, the pre-charge control circuit pre-charges the match lines to a reference voltage,
wherein
when the search data is all-matched with the storage data, the electrical characteristic detection circuit detects a first match line voltage;
when the search data is partially-matched with the storage data, the electrical characteristic detection circuit detects a second match line voltage; and
when the search data is all-mismatched with the storage data, the electrical characteristic detection circuit detects a third match line voltage;
the first match line voltage is higher than the second match line voltage; and the second match line voltage is higher than the third match line voltage.