Fuse circuitry having physical fuse and non-volatile memory cell coupled to a detector
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A fuse circuit including: a physical fuse; a detection circuit for the detection of the state of the physical fuse; and an electrically programmable non-volatile memory cell associated with the physical fuse, programmed when the physical fuse is blown and connected to the detection circuit so that, when the electrically programmable non-volatile memory cell is programmed, the electrically programmable non-volatile memory cell confirms the blown state of the physical fuse even if the characteristics of the blown state of the physical fuse change with time.