Reducing fuse programming time for non-volatile storage of data

摘要

Multiple fuse circuits are used associated with a corresponding number of bits forming a desired value which may need to be stored in a non-volatile storage. Assuming the desired value contains a first count number of zeros and a second count number of ones, the fuse circuits at bit positions having values equaling the logical value with smaller count are blown. If the blown fuse circuits generate the logical value associated with larger one of the two counts, the outputs of all the fuse circuits are inverted. Thus, a desired value can be always generated while reducing the number of fuse circuits blown.