A 1.2-million transistor, 33-MHz, 20-b dictionary search processor (DISP) ULSI with a 160-kb CAM
Masato Motomura, J. Toyoura, Kenji Hirata, H. Ooka, Hachiro Yamada, Tadayoshi Enomoto · IEEE Journal of Solid-State Circuits · 1990
A 1.2-million transistor, 33-MHz, 20-b dictionary search processor (DISP) ULSI has been developed using a 0.8- mu m triple-layer-Al, CMOS fabrication technology. A 13.02*12.51-mm/sup 2/ chip contains a specially developed 160-kb content addressable memory (CAM) and cellular automation processor (CAP). A single DISP chip can store a maximum of 2048 words, and performs dictionary search in various search modes, including an approximate word search. The character input rate for the dictionary search operation is 33 million characters per second. The DISP typically consumes 800 mW at a supply voltage of 5 V. A high-speed, functional 50000 word dictionary search system can be built with 25 DISP chips arranged in parallel, to play an important role in natural language processing.>