A memory has defective locations in its user portion replaceable by
redundant locations in a redundant portion. Data latches in column
circuits of user and redundant portions allow data sensed from or to be
written to a memory to be exchanged with a data bus. A remote redundancy
scheme has the redundant data available from a central buffer accessible
by any number of column circuits. Redundant data buffer circuits enable
bus exchange with data from the user data latches except for defective
locations when data are taken from the central buffer. In this way only
addressing for the user portion is used for bus exchange. Also,
accessibility to the redundant data will not be restricted by the
locations of the column circuits relative to the redundant data latches
and the buffered redundant data can be accessed at a finer granularity
than that imposed by the column circuits.