Everspin’s UNISYST MRAM Combines Code and Data Storage for Embedded Systems
The new UNISYST MRAM family unifies code and data storage in a single device, offering up to 2 Gb density, 400 MB/s reads, and a migration path from its existing PERSYST platform.
Everspin Technologies announced the UNISYST MRAM family at Embedded World 2026. UNISYST is a new generation of unified memory designed to change how embedded systems store and access code and data. The announcement extends the company’s MRAM roadmap into territory traditionally held by NOR flash.
Everspin showcased its new UNISYST MRAM family at Embedded World 2026. Image used courtesy of Everspin Technologies
What Is UNISYST?
Everspin’s UNISYST is a unified code-and-data MRAM architecture that bridges traditional configuration memory and higher-density persistent storage, extending MRAM into NOR flash applications where superior performance, endurance, and reliability are valued. Unlike discrete solutions that separate code storage from working data memory, UNISYST handles both in a single device, potentially simplifying board design and reducing component count.
The family is built as a natural extension of Everspin’s existing PERSYST MRAM platform, giving customers a migration path from today’s serial MRAM devices to higher-density unified memory without requiring changes to system architecture or software.
Everspin will initially offer UNISYST in densities ranging from 128 MB to 2 GB, using a standard xSPI interface that supports octal SPI at 200 MHz. On the performance side, read bandwidth reaches up to 400 MB/s with write bandwidth of approximately 90 MB/s — over 400 times faster than NOR flash—and write endurance up to 10 times higher than typical NOR. The devices are planned to feature AEC-Q100 Grade 1 qualification and a minimum 10-year data retention at extreme temperatures.
The UNISYST family functions as an extension of Everspin’s PERSYST MRAM platform. Image used courtesy of Everspin Technologies
Edge AI, Industrial Systems, and More
Everspin is positioning UNISYST across several demanding markets. For AI at the edge, fast AI weight updates and local code-and-data storage support workloads that need fast boot and rapid reconfiguration, with execute-in-place capability removing the need for multiple system memories.
Military and aerospace applications include FPGA configuration and code storage for mission-critical systems, such as low-Earth-orbit satellites that require frequent over-the-air updates. Automotive, industrial, and casino gaming round out the target list, covering control, logging, and configuration in environments demanding fast writes, long endurance, and persistent storage.
Enhancing MRAM Technology
Engineering samples of UNISYST are expected to be available in Q4 2026, with additional densities and options to follow. Developers already working with PERSYST-based designs should find the transition relatively straightforward, given the shared architectural foundation between the two platforms.
