Electrically erasable and programmable memory, has control and refreshment units arranged to erase counter after reaching maximum count value chosen so that cells undergone maximum number of stress cycles equal to determined number

摘要

Memory (MEM1) has memory plan organized into sectors (ST1-ST8), each with counter (CMPT1-CMPT8) of control and refreshment which is integrated in sector. Sector has memory cells linked to lines of bit of sector. Control and refreshment units are arranged to erase counter after reaching maximum count value chosen so that when maximal count value is reached, memory cells have undergone number of electric stress cycles equal to determined value. An independent claim is also included for a method for controlling and refreshing the memory cells in a electrically erasable and programmable memory.