Patent ID: 7099177
Filing Date: 2006-08-29
Classification: G11C

Abstract:
1. A nonvolatile ferroelectric memory device having a power control function, comprising: a voltage drop unit for dropping an external power voltage to supply a power voltage; a nonvolatile ferroelectric circuit unit comprising a nonvolatile ferroelectric capacitor for reading/writing data stored in a cell depending on the power voltage; a level shifter for shifting data read from the nonvolatile ferroelectric circuit unit to the external power voltage level; an input/output unit driven by the level of the external power voltage, and for buffering input data and output data of the level shifter to control input/output operations; and a power stabilization unit for removing noise from the power voltage applied from the voltage drop unit to provide a stabilized voltage, wherein the power stabilization unit comprises a capacitor and a ferroelectric capacitor connected in parallel and between a power voltage terminal and a ground voltage terminal, for stabilizing the power voltage.