POWER CONTROL METHOD FOR SEMICONDUCTOR MEMORY, AND SEMICONDUCTOR MEMORY

摘要

PURPOSE: To greatly reduce power consumption while being in a standby state. CONSTITUTION: A power control method for this semiconductor memory is provided with a super low power consumption mode by which power control is performed in a standby state, this super low power consumption mode includes a burst/self-refresh state BSST, a power-off state PFST, and a power on state PNST, in the burst/self-refresh state BSST, memory cells are refreshed concentrically, in the power off state PFST, internal power source circuits are turned off partially, in the power-on state, the internal power source circuits turned off partially are turned on.