WRITE DRIVER IN SENSE AMPLIFIER FOR RESISTIVE TYPE MEMORY AND OPERATION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a write drive for use for level shifting in a sense amplifier for a resistive type memory.SOLUTION: The write driver includes a cross-coupled latch, a first output section, a second output section, and an input section. The first output section includes one or more first driving transistors to drive a first current through the first output section and not through the cross-coupled latch. The second output section includes one or more second driving transistors to drive a second current through the second output section and not through the cross-coupled latch. Current flows of the output sections are isolated from the latch circuit. Since two PMOS type transistors serially connected are not constituted, the consumption of a die area is reduced. A single control signal is used to drive the write driver.