The present invention provides a method and apparatus for writing a
programmable conductor random access memory (PCRAM) element. After a read
operation of the memory element a complement logical state from that read
is written back to the memory element. In one embodiment the memory
element is then again written back to its original state. In another
embodiment logic circuitry keeps track of whether the original logic state
or its complement are stored in the memory element so that during the next
read the stored logic will be correctly read.
