A semiconductor storage device having a plurality of low power consumption modes is provided.The semiconductor storage device includes a plurality of memory modules where a plurality of low power consumption modes can be set and cancelled based on a first and a second control signals. At least a part of memory modules of the plurality of memory modules have a propagation path that propagates an inputted first control signal to a post stage memory module. The second control signal is inputted into each of the plurality of memory modules in parallel. Setting and cancelling of the first low power consumption mode of each memory module are performed based on a combination of the first control signal that is propagated through the propagation path and the second control signal. Setting and cancelling of the second low power consumption mode, in which regions where a power source is shut down are different from those in the first low power consumption mode, of each memory module are sequentially performed according to the first control signal that is propagated through the propagation path.