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A scientific study of the problems of digital engineering for space flight systems,
with a view to their practical solution.

1998 Military and Aerospace Applications of

Programmable Devices and Technologies Conference

(MAPLD Conference)

B8: David Mavis, Mission Research Corporation, Bill Cox, FPGA Technologies, Dennis Adams, Northrop Grumman Corporation, and Richard Green, Aerospace Design Concepts (submitted by Terri Allahdadi)

Mission Research Corporation

"A Reconfigurable, Nonvolatile, Radiation Hardened Field Programmable Gate Array (FPGA) For Space Applications"

B8_Mavis.pdf

B8_Mavis.doc

A new FPGA has been designed specifically for total dose tolerance and SEU immunity in space environments. The device uses CMOS/SONOS circuits for nonvolatile, reconfigurable programmation. A new tierable and nestable directional routing architecture enables the use of good rad-hard circuit design practices and specifically avoids the use of pass gates. The FPGA contains ~4k equivalent gates, is hardened to >200krad(Si) total dose, uses SEU immune programmation storage and SEU immune logic latches, and has control lines hardened to an LET > 100 MeV-cm2/mg for transient glitches. The architecture, software tools, and hardening techniques will be discussed.

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