Patent ID: 6515907
Filing Date: 2003-02-04
Classification: G11C

Abstract:
A non-volatile memory circuit using FLOTOX type electrically rewritable memory elements, comprising:a first data line to which a drain electrode of a first non-volatile memory element is connected via at least a first single selection transistor; and a second data line to which a drain electrode of a second non-volatile memory element is connected via at least a second single selection transistor; wherein a gate electrode of the first non-volatile memory element is connected to the drain electrode of the second non-volatile memory element; a gate electrode of the second non-volatile memory element is connected to the drain electrode of the first non-volatile memory element; the first data line is connected to both a first current load circuit and a first input terminal of a sense amplifier circuit; the second data line is connected to both a second current load circuit and a second input terminal of the sense amplifier circuit; a source electrode of the first non-volatile memory element and a source electrode of the second non-volatile memory element are connected via switching transistors to ground potential, respectively; and one data bit is stored by the non-volatile memory circuit by respectively storing a complementary pair comprising a positive and a negative logic state in the first non-volatile memory element and the second non-volatile memory element.