Provided is a phase change random access (PRAM) memory. The PRAM may
include a memory cell array having a plurality of phase change memory
cells, and a data read circuit including a compensation unit and a sense
amplifier, the compensation unit configured to provide a sensing node
with a compensation current to compensate for a decrease in a level of
the sensing node caused by a current flowing through one of the plurality
of phase change memory cells, and the sense amplifier configured to
compare a level of the sensing node with a reference level and output a
result of the comparison.