Title :
Heterojunction bipolar technology for emitter-coupled multiple-valued logic in gigahertz adders and multipliers
Author :
Micheel, Lutz J.
Author_Institution :
Wright Lab., Wright-Patterson AFB, OH, USA
Abstract :
The use of advanced devices and emitter-coupled (EC) circuit techniques for implementing ultra-high-speed computer arithmetic is explored. Redundant encoding of the input digits and multiple-valued operands are used in the positive-digit and signed-digit number systems. Addition in both systems has only three steps and entails no carry propagation chains. Emitter-coupled multivalued logic (MVL) is presented. A novel literal circuit is included. SPICE simulations of AlGaAs/GaAs heterojunction bipolar transistor (HBT) integrated circuits resulted in 1.4-1.6-GHz clock performance estimates of the ECMVL building blocks. Advanced InP-based HBT technology development is proposed to attain 4-10-GHz adder and multiplier performance. Modified circuits using resonant tunneling diodes and transistors are also discussed
Keywords :
adders; bipolar integrated circuits; circuit analysis computing; digital arithmetic; emitter-coupled logic; heterojunction bipolar transistors; many-valued logics; 1.4 to 1.6 GHz; AlGaAs/GaAs heterojunction bipolar transistor; SPICE simulations; emitter-coupled multiple-valued logic; gigahertz adders; heterojunction bipolar technology; literal circuit; multipliers; redundant encoding; resonant tunneling diodes; ultra-high-speed computer arithmetic; Bipolar integrated circuits; Circuit simulation; Clocks; Computational modeling; Digital arithmetic; Encoding; Gallium arsenide; Heterojunction bipolar transistors; Multivalued logic; SPICE;
Conference_Titel :
Multiple-Valued Logic, 1992. Proceedings., Twenty-Second International Symposium on
Conference_Location :
Sendai
Print_ISBN :
0-8186-2680-1
DOI :
10.1109/ISMVL.1992.186773
