DISPOSITIF DE MEMOIRE COMPACT ASSOCIANT UN PLAN MEMOIRE DU TYPE SRAM ET UN PLAN MEMOIRE DU TYPE NON VOLATIL, ET PROCEDES DE FONCTIONNEMENT

摘要

A memory device includes a memory cell with an elementary SRAM-type cell and an elementary module coupled between a supply terminal and the elementary SRAM-type cell. The elementary module has a single nonvolatile EEPROM elementary memory cell that includes a floating gate transistor. The elementary module also has a controllable interconnection stage that can be controlled by a control signal external to the memory cell. The nonvolatile elementary memory cell and the controllable interconnection stage are connected to one another. The floating gate transistor of the nonvolatile memory cell is controllable to be turned off when a data item stored in the elementary SRAM-type cell is programmed into the nonvolatile elementary cell.