STATIC WORDLINE REDUNDANCY MEMORY DEVICE

摘要

The invention relates to a memory device comprising a set of word decoders (W), a set of wordline drivers (WL), a plurality of switches (S) to connect a subset of the wordline drivers to the set of word decoders and storage means (5) for storage of information indicative of defective wordline, the wordline drivers comprising a predefined first subset of wordline drivers which are to be used when no wordline is defective, the set of wordline drivers further comprising a plurality of second subsets of wordline drivers which are to be used when one of the wordlines is defective, the memory device further comprising logic means (4) for logically and permanently assigning one of the subsets to the set of word decoders in response to the information stored in the storage means, the logic means (4) controlling the switches (S) to connect the second subset of wordline drivers to the set of word decoders.