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SEU hardening of field programmable gate arrays (FPGAs) for space applications and device characterization

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5 Author(s)
Katz, R. ; NASA Goddard Space Flight Center, Greenbelt, MD, USA ; Barto, R. ; McKerracher, P. ; Carkhuff, B.
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Field Programmable Gate Arrays (FPGAs) are being used in space applications because of attractive attributes: good density, moderate speed, low cost, and quick turn-around time. However, these devices are susceptible to Single Event Upsets (SEUs). An approach using triple modular redundancy (TMR) and feedback was developed for flip-flop hardening in these devices. Test data showed excellent results for this circuit topology. Total dose and Single Event Effect (SEE) testing have been performed on recently released technologies. Failures are analyzed and test methodology is discussed.<>

Published in:

Nuclear Science, IEEE Transactions on  (Volume:41 ,  Issue: 6 )

Date of Publication:

Dec. 1994

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