Engineers at Actel Corp. in Sunnyvale, Calif., are expanding their line of radiation-tolerant field programmable gate arrays (FPGAs). The new RTSX-S devices, which Actel experts say they will qualify for space applications, are based on Actel`s 0.25-micron antifuse SX-A FPGAs. Fabricating the new devices will be Matsushita Electronics Co. in Japan. Actel has identified two devices for the new rad-tolerant FPGA line — the RTSX32S with 56,000 system gates, and the RTSX72S with 108,000 system gates. The first device will be qualified this summer, and the second device will be qualified by next winter. For more information, contact Actel`s Chuck Gibson by phone at 408-739-1010, or on the World Wide Web at http://www.actel.com/. — J.K.