Freescale started shipping of the world's of its 4 Mbit MRAM chip. The MR2A16A is now entering commercial production, with small-volume orders priced at $25 per chip.

The commercial production of Freescale's MRAM chips is a great breakthough, and it follows two years of product sampling. The read/write speed of these chips is 35 ns, and they are based on a 0.18-micro process. The cell size of the 4Mbit chip is 1.26 square micron. 

Everspin next plan is to release a 16-Mbit MRAM chip, but the company does not intend to become a commodity memory vendor, and will currently focus on high-end solutions where reliability and endurance are important.

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