Magnetoresistive RAM (MRAM) memory—which combines RAM-like access with non-volatility to help simplify design architectures—is making headway in aerospace, defense, and other demanding systems. Take the case of Teledyne HiRel Semiconductors, part of Teledyne Aerospace & Defense Electronics, which has added Everspin’s PERSYST STT-MRAM to its non-volatile memory portfolio for aerospace, defense, and industrial applications.
The Chandler, Arizona-based Everspin Technologies is a supplier of commercially available MRAM solutions. Its 256-Mb PERSYST spin-transfer torque MRAM (STT-MRAM) is a non-volatile memory that combines RAM-like speed with the ability to retain data through power loss, system resets, and unexpected interruptions.
Spin-transfer torque (STT) technology manipulates the spin of electrons with a polarizing current to establishe the desired magnetic state of a magnetic tunnel junction (MTJ). Source: Everspin Technologies
Teledyne HiRel will initially offer Everspin’s 256-Mb PERSYST STT-MRAM as part of its memory offerings for military and aerospace systems, targeting applications such as avionics, VPX and single-board computer platforms, radar and electronic warfare payloads, satellite electronics, and autonomous systems. The tie-up will eventually expand to other PERSYST STT-MRAM products, including 64-Mb and 128-Mb options.
Teledyne HiRel will back these MRAMs with product guidance, screening flows, qualification documentation, procurement support, and obsolescence management. This will allow the collaboration to provide design engineers with screening expertise and supply continuity, ensuring availability, lifecycle planning, and long-term supply.
Why MRAM in aerospace and defense
MRAM can replace or complement NOR flash in applications that need faster updates or power-loss-safe storage. It can also reduce a design’s reliance on battery-backed SRAM, hold-up power, or capacitor-backed memory schemes.
In other words, it helps simplify architectures that would otherwise require separate volatile memory, non-volatile storage, backup power, wear-leveling strategies, or complex data-protection circuitry. “PERSYST MRAM delivers a unique combination of endurance, instant-on data retention, and high-performance operation,” said Sanjeev Aggarwal, president and CEO of Everspin Technologies.
That’s critical in aerospace and defense designs, which require memory solutions that can sustain long operating lifecycles and provide reliable performance in harsh environments. So, this partnership between MRAM supplier Everspin and Teledyne HiRel could help lower barriers to adopting MRAM in mission-critical systems for aerospace and defense applications.
Teledyne HiRel will start shipping PERSYST MRAM products from its Milpitas, California, facility in the fourth quarter of 2026.
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