RA associates proposes to investigate solutions to the problem of obsolete integrated circuits. This will include a survey and compilation of the work underway by others, plus an in-depth analysis of several candidate solutions. Specific candidates include 54als, 54hct, 54act logic familites. A solution is proposed for those cases where the pinout needed is not available. Computer analysis of effects of replacement will be augmented with manual analysis, to arrive at a strategy, or group of strategies, which will solve most, if not all, cases. Replacement strategy will be tested using actual or simulated boards, under military temperature conditions. A comprehensive final report will be prepared. During phase ii, more testing and military qualification of selected part types will be accomplished.
