SEMICONDUCTOR INTEGRATED CIRCUIT, METHOD OF INHIBITING DATA READ OPERATION OF SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND INTEGRATED CIRCUIT TYPE MEMORY MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit device which assures operation to protect data being stored. SOLUTION: This circuit device includes a memory cell 5 having threshold value variable type memory elements M1 to Mn connected in series between the bit line potential supplying point D and the source potential supplying point S. When data is read from the memory cell 5, a voltage which makes a memory element M1 non-conductive is supplied to at least one of the memory elements M1 to Mn in order to inhibit read operation of data.