Fuse fault repair circuit

A fuse fault repair circuit, comprising:

• a fuse array, of which an input end is configured to be connected to a power supply end, and an output end is configured to output S first logic signals, wherein the fuse array comprises M fuse units;
• each of the fuse units outputs one first logic signal, S and M are both integers greater than zero, and S is less than M;
• the M fuse units comprise a redundant fuse array and a non-redundant fuse array, the redundant fuse array has no signal output when the fuse array is not faulty, and the non-redundant fuse array outputs the S first logic signals;
• a signal storage module, comprising at least M storage units, each of the storage units being configured to store a first logic signal sent by one fuse unit connected thereto;
• and
• a scan repair module in signal connection with the signal storage module, configured to scan the storage units in the signal storage module, determine, when a faulty storage unit has been scanned, that a first fuse unit connected to the faulty storage unit is faulty, and replace the first fuse unit with a first redundant fuse unit corresponding to the first fuse unit, wherein a first logic signal stored in the faulty storage unit is a fault signal, the first redundant fuse unit belongs to the redundant fuse array, and a first logic signal corresponding to the first redundant fuse unit is a normal signal.