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MRAM
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Magnetic Random Access Memory ( MRAM )

Magnetoresistive random-access memory (MRAM) is a non-volatile random-access memory technology available today that began its development in the 1990s.
Unlike conventional RAM chip technologies, data in MRAM is not stored as electric charge or current flows, but by magnetic storage elements
MRAM has similar performance to SRAM, similar density to DRAM but much lower power consumption than DRAM,
It is currently in production by Everspin,

Everspin 1Gb DDR3 Spin-Torque MRAM

The EMD4E001G[08G1/16G2] is an 128Mb x8 or 64Mb x16 Spin-Torque MRAM capable of DDR3 operation at rates of up to 1333MT/sec/pin.  
It is available in a 78 BGA or 96 BGA package.
 
Everspin 256Mb DDR3 Spin-Torque MRAM
 The EMD3D256M08G1 32Mb x 8 or EMD3D256M16G2 16Mb x 16 Spin-Torque MRAM capable of DDR3  operation at rates of up to 1333MT/sec/pin. 
It is available in a 78-ball [x8] or a 96-ball [x16] 10 x 13mm BGA package.

everspin stt-mram

Application Note: DDR3 ST-MRAM in Enterprise SSD
Utilizing Everspin ST-MRAM in an Enterprise SSD to greatly reduce power-fail energy storage while increasing SSD performance and density
 
Application Note:  As Enterprise SSDs continue to push the envelope in terms of system performance and smaller form factors, SSD solutions providers are facing greater challenges to increase performance and density while continuing to protect data-in-flight from power failures. NAND flash has not significantly increased in performance and the improvement in SSD performance is typically made by adding more parallel channels of flash. This increases the need for energy storage for power fail protection which in turn reduces space available for the storage array for a fixed form factor.
 
This app note explores the SSD architecture benefits of employing Everspin ST-MRAM on the DDR bus of the SSD controller to provide a high speed, nonvolatile write buffer in order to reduce power fail energy storage while increasing performance and storage density.

Part Number Density Org. Voltage Speed Temp Rating Package Pack/Ship Status Download
EMD4E001G08G1-150CAS1 1Gb 128Mb x8 -- 667MHz Commercial 78-BGA Tray CS Contact Us
EMD4E001G08G1-150CAS1 1Gb 128Mb x8 -- 667MHz Commercial 78-BGA Tape & Reel CS Contact Us
EMD4E001G16G2-150CAS1 1Gb 64Mb x16 -- 667MHz Commercial 96-BGA Tray CS Contact Us
EMD4E001G16G2-150CAS1R 1Gb 64Mb x16 -- 667MHz Commercial 96-BGA Tape & Reel CS Contact Us
EMD3D256M16G2-150CBS1T 256Mb 16Mb x 16 1.5v +/- 0.075v 1333 0-85 BGA Tray MP Contact Us
EMD3D256M16G2-150CBS1R 256Mb 16Mb x 16 1.5v +/- 0.075v 1333 0-85 BGA Tape and Reel MP Contact Us
EMD3D256M16G2-150CBS2T 256Mb 16Mb x 16 1.5v +/- 0.075v 1333 0-85 BGA Tray MP Contact Us
EMD3D256M08G1-187CBS2T 256Mb 32Mb x 8 1.5v +/- 0.075v 1066 0-85 BGA Tray MP Contact Us
EMD3D256M08G1-150CBS2T 256Mb 32Mb x 8 1.5v +/- 0.075v 1333 0-85 BGA Tray MP Contact Us
EMD3D256M16G2-187CBS2T 256Mb 16Mb x 16 1.5v +/- 0.075v 1066 0-85 BGA Tray MP Contact Us
EMD3D256M16G2-150CBS2R 256Mb 16Mb x 16 1.5v +/- 0.075v 1333 0-85 BGA Tape and Reel MP Contact Us
EMD3D256M08G1-187CBS2R 256Mb 32Mb x 8 1.5v +/- 0.075v 1066 0-85 BGA Tape and Reel MP Contact Us
EMD3D256M08G1-150CBS2R 256Mb 32Mb x 8 1.5v +/- 0.075v 1333 0-85 BGA Tape and Reel MP Contact Us
EMD3D256M16G2-187CBS2R 256Mb 16Mb x 16 1.5v +/- 0.075v 1066 0-85 BGA Tape and Reel MP Contact Us
EMD3D256M08G1-150CBS1 256Mb 32Mb x 8 1.5v +/- 0.075v 1333 0-85 BGA Trays MP Contact Us
EMD3D256M08G1-150CBS1T 256Mb 32Mb x 8 1.5v +/- 0.075v 1333 0-85 BGA Tray MP Contact Us
EMD3D256M08G1-150CBS1R 256Mb 32Mb x 8 1.5v +/- 0.075v 1333 0-85 BGA Tape and Reel MP Contact Us
EMD3D256M16G2-150CBS1 256Mb 16Mb x 16 1.5v +/- 0.075v 1333 0-85 BGA Trays MP Contact Us