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Home ? News ? News & Events ? STT-MRAM Technology Changes Status Quo

STT-MRAM Technology Changes Status Quo

2019-12-16 10:00:57

So far, the storage technologies available to designers are volatile, which means that the data content in the memory is lost after a power failure. However, with EVERSPIN Technologies' 256Mb STT-MRAM, the system can now have high-performance memory like DRAM, but can provide persistent non-volatile data storage.
Figure 1: STT-MRAM
STT-MRAM stands for spin-transfer torque reluctance random access memory. Any data written to the STT-MRAM device is inherently persistent and does not require any batteries or supercapacitors. Data is captured by writing to a memory array that uses polarized currents to control electron spin. The performance of STT-MRAM is similar to DRAM, but no refresh is required. The currently available interface is ST-DDR3, which is very similar to the standard JEDEC DDR3. ST-DDR4 interface will be provided in the future, which will bring higher speed and larger capacity.

Some advantages of STT-MRAM technology are:
• Non-volatile data
• Performance characteristics similar to DRAM

• One billion times or more data durability
• DDR3 compatible package and future DDR4

Compatible footprints
• ST-DDR3 interface and future ST-DDR4 interface
• byte read and write (no block)
STT-MRAM is a new type of non-volatile magnetic random access memory that can write information through spin current. It is the second generation of magnetic memory MRAM. The core of the STT-MRAM memory cell is still an MTJ, which consists of two ferromagnetic layers with different thicknesses and a non-magnetic isolation layer with a thickness of several nanometers. It uses spin current to write information
Keywords: STT-MRAM

Shenzhen Ramsun Microelectronics Co.,Ltd(Ramsun International) is a vendor of the seimicondutor componets and the memory IC’s solution with clear market advantage. We still focus on the promotion for some famous semicondutor brand ,and specially take the RAM(Random Access Memory) as our core products.

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