In a cache tag integrated on an SRAM with a memory cache, laser fuses are
programmed to indicate which, if any, tag subarrays in the cache tag are
not functioning properly. In addition, the burst length of the SRAM is
increased to reduce the number of tag subarrays necessary for operation
of the cache tag so any nonfunctional tag subarrays are no longer
necessary. In accordance with the indications from the programmed laser
fuses and the increased burst length, logic circuitry disables any
nonfunctional tag subarrays, leaving only functional tag subarrays to
provide tag functionality for the memory cache. As a result, an SRAM that
is typically scrapped as a result of nonfunctional tag subarrays can,
instead, be recovered for sale and subsequent use.