Patent ID: 6618317
Filing Date: 2003-09-09
Classification: G11C

Abstract:
A thin film magnetic memory device comprising:first to Nth N (where N is a natural number not smaller than 2) memory blocks each having a plurality of memory cells storing magnetically written data arranged in a matrix, and each sharing columns of a plurality of memory cell columns; a plurality of bit lines provided to correspond to said plurality of memory cell columns, respectively, and shared among said N memory blocks; and first to (N+1)th (N+1) write control circuits each arranged alternately with each of said memory blocks using regions adjacent in a row direction to each of said memory blocks, wherein each of said (N+1) write control circuits is connected to said plurality of bit lines, and supplies a data write current to a selected bit line of said plurality of bit lines during said data write in accordance with a level of write data, and when the Ith memory block of said N memory blocks, where I is a natural number from 1 to N, is selected, each of first to Ith write control circuits electrically connects said selected bit line to one of first and second voltages according to said write data and each of (I+1)th to (N+1)th write control circuits electrically connects said selected bit line among said plurality of bit lines to the other one of said first and second voltages according to said write data.