A 12b general-purpose fuzzy logic controller chip

摘要: The digital CMOS 12b fuzzy coprocessor chip SAE 81C991 is presented. Designed as a logic controller, the exhibits silicon area of 17.9 mm/sup 2/ and computation speed in submillisecond region. Real-time control or classification tasks industry electronics, image processing, automotive are its main fields applications. Up to 131072 rules, 4096 inputs, 1024 outputs with arbitrary membership functions can be processed. definition algorithms facilitated ten operation modes, eight inference operators, four defuzzification methods. Fuzzification 80 center gravity for 16b output takes only 16 s. This knowledge base covers half kbyte memory has store data but almost no code coprocessor. Moreover, part stored their characteristic values reducing demand significantly comparison look-up table. Minimized tailored key elements small microcontrollers. Interfaces 8b microcontrollers supported.