A general-purpose fuzzy inference processor

The SAE 81C99 Fuzzy Inference Processor (FP) exhibits four different operation modes, eight programmable fuzzy algorithms and up to 256 inputs, 64 outputs and 16384 rules. The chip, fabricated in 1.0 /spl mu/m CMOS technology, can be used as a stand-alone device or as an on-chip module for 8-bit and 16-bit micro-controllers. At 20 MHz crystal frequency, it has a maximum inference speed of 10 million rules/s. Thus, the FP can be applied for even very complex systems and for processes far beyond the millisecond region occurring, e.g., in automotive electronics and pattern recognition.