Memory controller for supporting processing-in-memory

A memory controller controlling modes for processing requests for a memory device, the memory controller comprising:

• a bank group scheduler configured to generate a memory command corresponding to a memory request;
• an arbiter configured to select and output the memory command;
• and
• a Processing In Memory (PIM) management circuit configured to generate a PIM command corresponding to a PIM request,
• wherein the modes include a normal mode for processing the memory request and a PIM mode for processing the PIM request,
• wherein the PIM management circuit includes a scheduler configured to control, according to a number of PIM commands, switching between the normal mode and the PIM mode, and
• wherein the scheduler performs, by outputting a mode switching signal, a first switching corresponding to a switching from the PIM mode to the normal mode in response to the activation of a refresh signal.