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To reduce the time, cost and risk of developing spaceflight-qualified systems, designers may start with Commercial-Off-The-Shelf (COTS) devices that can later be replaced by their space-qualified, radiation-tolerant equivalent parts available in plastic or ceramic packages featuring the same pinout distribution.
Microchip Technology Inc. has announced a radiation-tolerant, 64 Megabit (Mbit To reduce the time, cost and risk of developing spaceflight-qualified systems, designers may start with Commercial-Off-The-Shelf (COTS) devices that can later be replaced by their space-qualified, radiation-tolerant equivalent parts available in plastic or ceramic packages featuring the same pinout distribution.
Microchip Technology Inc. has announced a radiation-tolerant, 64 Megabit (Mbit) parallel-interface SuperFlash memory device with unrivaled Total Ionizing Dose (TID) tolerance for maximum reliability and robustness in the harsh radiation environment of space missions. It is an ideal companion to Microchip's space-ready microcontrollers (MCUs), microprocessors (MPUs) and Field Programmable Gate Arrays (FPGAs) that provide the building blocks for this scalable development model.
"The SST38LF6401RT SuperFlash device further strengthens our scalable approach to developing total space system solutions using our radiation-tolerant or radiation-hardened microprocessors and FPGAs," said Bob Vampola, associate vice president of Microchip's aerospace and defense business unit. "It offers the vital protection these space systems need for the most reliable digital processing where companion Flash memory is required to store the critical software code or bitstream that drives the complete system."
Radiation-tolerant up to 50 kilorad (Krad) TID, even while the Flash is still biased and operating, the SST38LF6401RT device enables systems to operate in a broad range of space applications where they cannot afford any loss of code execution that could lead to severe defects and system loss.
It is an ideal companion to Microchip's SAMRH71 Arm Cortex-M7-based radiation-hardened SoC processor and can also be used with the company's RT PolarFire FPGAs to support in-flight system reconfiguration. The device has pinout distribution compatibility with its industrial version for easy transition to the space-qualified plastic or ceramic versions at the Printed Circuit Board (PCB) level.
Development Tools and Availability
The SST38LF6401RT SuperFlash device is sampling now in a ceramic version and supported by an evaluation board and demonstration software, available upon request. Also available upon request is an FPGA flight programming reference case for combining the SuperFlash device with an FPGA and a SAMRH71 processor with supporting software. Voltage operation ranges from 3.0 to 3.6 volts (V).
Microchip's COTS-to-Radiation-Tolerant Process
By selecting relevant devices from its proven automotive- or industrial-qualified product family and adding silicon process improvements, Microchip gives them enhanced protections that make them more immune to single-event latch-up in heavy ion environments. The radiation performance of the slightly modified devices is fully characterized and supported by a dedicated radiation report for each functional block.
The devices are used in applications ranging from launch vehicles and satellite constellations to space stations. Designers can begin system implementation with easy-to-source COTS devices before swapping them out with pinout-compatible space-qualified equivalents in high-reliability plastic or ceramic packages.
Related Links
Microchip Technology
Space Technology News - Applications and Research
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Microchip offer Low-Power Radiation-Tolerant PolarFire FPGA ahead of spaceflight qualification
Chandler AZ (SPX) Dec 03, 2020
Microchip Technology has begun shipping engineering silicon for its RT PolarFire Field Programmable Gate Array (FPGA) while the device is being qualified to spaceflight component reliability standards. Designers can now create hardware prototypes with all the same electrical and mechanical performance that the space-qualified RT PolarFire FPGAs will provide for high-bandwidth on-orbit processing systems with industry-low power consumption and the ability to withstand radiation effects in space. ... read more