Novel hybrid DRAM/MRAM design for reducing power of high performance mobile CPU

Abstract

This paper presents novel DRAM/MRAM hybrid memory design that enables effective power reduction for high performance mobile CPU. Power reduction by about 60% of SRAM-based cache while application is running can be achieved with D-MRAM-based cache memory in CPU. This result is attributable to both novel D-MRAM memory design and lowest programming energy, 0.09pJ, of advanced p-MTJ with ultra-high speed write and low power write (3ns, 50uA).