Patent ID: 9153308
Filing Date: 2015-10-06
Classification: G11C

Abstract:
1. A magnetic random access memory device comprising: a memory cell array comprising memory cells; word lines coupled to rows of the memory cell array; bit lines coupled to columns of the memory cell array; an input/output circuit configured to receive data of a first bit width from the outside and to output data to the outside; and a buffer configured to hold data input to the input/output circuit and to hold data read from the memory cell array via the bit lines; wherein the magnetic random access memory device receives (i) a first command together with a first group of an address signal from the outside and (ii) a second command designating a write operation together with a second group of the address signal, wherein the first command and the second command are components of a single write sequence of the magnetic random access memory device, and wherein a read operation from the memory cell array to the buffer according to the first command and the first group of the address signal occurs during a course of the single write sequence before a write operation from the buffer to the memory cell array of a second bit width wider than the first bit width according to the first command and the first group of the address signal occurs.