| 摘要 |
A semiconductor device comprises a first transistor connected between a bit line and a sense node, and a second transistor amplifying a signal of the sense node. A first potential applied to a gate of the first transistor, a second potential supplied to the sense node, and a third potential supplied to the bit line are controlled so that the first potential applied to a gate of the first transistor is between the second and third potentials, the second potential is set larger than the third potential, and a predetermined potential obtained by subtracting a threshold voltage of the first transistor from the first potential is smaller than the third potential and higher than a low potential supplied to the second transistor. A potential of the bit line transitions from the third potential toward the low potential in accordance with data of a current change memory cell.
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