Patent ID: 9218868
Filing Date: 2015-12-22
Classification: G11C

Abstract:
1. A magnetic memory comprising: a plurality of memory cells arranged in an array form, each memory cell including a first MTJ element having a first terminal and a second terminal, and a first selection unit including a third terminal, a fourth terminal, and a fifth terminal, the third terminal being connected to the first terminal of the first MTJ element, and selecting the first MTJ element based on a row selection signal; a pair of a first bit line and a second bit line provided to each column of the memory cells, the first bit line being connected to the second terminal of the first MTJ element of a memory cell in a corresponding column, and the second bit line being connected to the fourth terminal of the first selection unit of the memory cell of the corresponding column, the first bit line and the second bit line being selected by a column selection signal; a word line provided to each row of the memory cells, and connected to the fifth terminal of the first selection unit of each memory cell in the one of the rows to transmit the row selection signal to the first selection unit; an equalizer circuit provided to each column of the memory cells, and to connect between the first bit line and the second bit line; and a control circuit that sets the first bit line and the second bit line connected to a selected memory cell to be a first and second potentials to conduct a write operation to the selected memory cell, and after the write operation, transmits a control signal to the equalizer circuit between the first bit line and the second bit line connected to the selected memory cell to activate the equalizer circuit to equalize the first and second potentials of the first bit line and the second bit line, thereby bringing into floating states.