Patent ID: 7012843
Filing Date: 2006-03-14
Classification: G11C

Abstract:
1. Device for driving a memory cell of a memory module which can be operated with an external voltage and an operating frequency, the memory cell having a capacitance for storing charges and a transistor for reading charges from the capacitance and for writing charges to the capacitance, which transistor can be controlled with a control voltage, having a charge store for supplying the control voltage which is greater than the external voltage, the charge store being able to be charged by the external voltage, and the charging of the charge store being able to be controlled temporally by a charging control frequency derived from a clock frequency of the memory module either directly, so that the charging control frequency corresponds to the clock frequency, or by frequency division, so that the charging control frequency is proportional to the clock frequency, so that the power consumption of the charge store is coupled to the clock frequency and the actual demand and follows the clock frequency and enables a need-conforming and energy-efficient operation of the charge store and of the memory module.