Semiconductor storage device
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United States of America Patent
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Sep 9, 2014
Grant Date -
Sep 13, 2012
app pub date -
Sep 19, 2011
filing date -
Mar 7, 2011
priority date (Note) -
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Abstract
According to one embodiment, a semiconductor storage device includes cells, and a sense amplifier. Each of the cells is connected to a bit line. The sense amplifier reads out data. The sense amplifier includes a first transistor to third transistor, and a switch. The first transistor has one end of a current path, the other end, and a gate. The second transistor has one end, and the other end. The second transistor has one of a first and a second supply ability. The third transistor has one end, and the other end. The third transistor has one of a third and a fourth supply ability. The switch grounds the second and the third transistors. The sense amplifier turns off the first transistor after transferring the data to an outside, and supplies the second signal to the switch to set gates of the second transistor and third transistor to ground.
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