Memory control chip and its control circuit

The utility model relates to a memory control chip and control circuit. A plurality of memory modules of time pulse with the same original reference (the same memory bank) are changed into reference having difference time pulse with predetermined phase difference, that is, the difference time pulse is used for accessing each memory module in the same memory bank. Thus, the quantity of data which are simultaneously changed is reduced, and noise which is simultaneously switched is decreased, so the number of power grounding foot positions can be less to reduce manufacture cost.