Circuits and methods are described for decoding exemplary memory arrays of
programmable and, in some embodiments, re-writable passive element memory
cells, which are particularly useful for extremely dense
three-dimensional memory arrays having more than one memory plane. In
addition, circuits and methods are described for selecting one or more
array blocks of such a memory array, for selecting one or more word lines
and bit lines within selected array blocks, for conveying data
information to and from selected memory cells within selected array
blocks, and for conveying unselected bias conditions to unselected array
blocks.