. | . |
Microchip Technology uses Arm-based MCUs for cheap radhard processors by Staff Writers Chandler AZ (SPX) Apr 08, 2019
From NewSpace to critical space missions, designers of space applications need to reduce design cycles and costs while scaling development across missions with different radiation requirements. To support this trend, Microchip Technology Inc. has introduced the space industry's first Arm-based microcontrollers (MCUs) that combine the low-cost and large ecosystem benefits of Commercial Off-the-Shelf (COTS) technology with space-qualified versions that have scalable levels of radiation performance. Based on the automotive-qualified SAMV71, the SAMV71Q21RT radiation-tolerant and SAMRH71 radiation-hardened MCUs implement the widely deployed Arm Cortex-M7 System on Chip (SoC), enabling more integration, cost reduction and higher performance in space systems. The SAMV71Q21RT and SAMRH71 allow software developers to begin implementation with the SAMV71 COTS device before moving to a space-grade component, significantly reducing development time and cost. Both devices can use the SAMV71's full software development toolchain, as they share the same ecosystem including software libraries, Board Support Package (BSP) and Operating System (OS) first level of porting. Once preliminary developments are complete on the COTS device, all software development can be easily swapped out to a radiation-tolerant or radiation hardened version in a high-reliability plastic package or space-grade ceramic package. The SAMV71Q21RT radiation-tolerant MCU reuses the full COTS mask set and offers pinout compatibility, making the transition from COTS to qualified space parts immediate. While the SAMV71Q21RT's radiation performance is ideal for NewSpace applications such as Low Earth Orbit (LEO) satellite constellations and robotics, the SAMRH71 offers the radiation performance suited for more critical sub-systems like gyroscopes and star tracker equipment. The SAMV71Q21RT rad-tolerant device ensures an accumulated TID of 30Krad (Si) with latch up immunity and is nondestructive against heavy ions. Both devices are fully immune to Single-Event Latchup (SEL) up to 62 MeV.cm/mg. The SAMRH71 radiation-hardened MCU is designed specifically for deep space applications with the following targeted radiation performances: - Accumulated TID of more than 100 Krad (Si) - No Single Event Upset (SEU) Linear Energy Transfer (LET) up to 20 MeV.cm/mg, without system mitigation - Designed for No Single-Event Functional Interrupts (SEFI), which secures all memories' integrity Based on the Arm Cortex-M7 core, the SAMV71Q21RT and SAMRH71 feature high-performance and low-power operation to provide long operating life for aerospace applications. To protect against the effects of radiation and manage system mitigation, the architecture of the devices includes fault management and data integrity features such as Error-correcting Code (ECC) memory, Integrity Check Monitor (ICM) and Memory Protection Unit (MPU). The SAMV71Q21RT and SAMRH71 also feature CAN FD and Ethernet AVB/TSN capabilities to follow the evolution of space systems' connectivity requirements. To further support deep space applications, the SAMRH71 has dedicated SpaceWire and MIL-STD-1553 interfaces for control and high-speed data management up to 200Mbit/s. "As the industry's first radiation-tolerant and radiation-hardened Arm Cortex-M7 MCUs, the SAMV71Q21RT and SAMRH71 bring a proven SoC architecture from the automotive market to aerospace applications," said Bob Vampola, vice president of Microchip's aerospace and defense business unit. "Leveraging Microchip's COTS-to-radiation-tolerant and radiation-hardened approach, the devices allow designers to begin prototyping immediately at a relatively limited cost before moving forward with qualified parts."
Development Tools
High-res images available through Flickr or editorial contact (feel free to publish):
Application image: https://www.flickr.com/photos/microchiptechnology/46749696124
SAMV71Q21RT chip shot: https://www.flickr.com/photos/microchiptechnology/46749696434/in/photostream/
SAMRH71 chip shot: https://www.flickr.com/photos/microchiptechnology/46749696894
Radioactive material detected remotely using laser-induced electron avalanche breakdown Newark MD (SPX) Mar 24, 2019 Physicists at the University of Maryland have developed a powerful new method to detect radioactive material. By using an infrared laser beam to induce a phenomenon known as an electron avalanche breakdown near the material, the new technique is able to detect shielded material from a distance. The method improves upon current technologies that require close proximity to the radioactive material. With additional engineering advancements, the method could be scaled up and used to scan trucks and sh ... read more
|
|
The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us. |