| 摘要 |
A semiconductor device using a segment writing method capable of achieving a normal write operation is provided. The first DL driver and the second DL driver each cause a magnetizing current to flow through a digit line of a selected block. A BL driver causes a write current to flow in a direction corresponding to the logic of a data signal to all bit lines in a selected segment, and writes the data signal to a memory cell of the selected block. A segment decoder, when the address of one segment has been input from the outside, selects one segment corresponding to the address and couples the same to the selected first DL driver, and the segment decoder, when the addresses of two or more segments have been input from the outside, selects two or more segments corresponding to the addresses and couples the selected two or more segments to the first DL driver and the second DL driver, respectively. |
