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A Josephson 4-bit RALU for a prototype computer

Journal Article · · IEEE (Institute of Electrical and Electronics Engineers) Journal of Solid State Circuits; (USA)
DOI:https://doi.org/10.1109/4.34095· OSTI ID:5201767
; ; ; ; ; ;  [1];  [2]
  1. Electrotechnical Lab., Ibaraki (Japan)
  2. Digital Equipment Corp Japan, 1-16-10 Amakubo, Tsukuba-shi, Ibaraki, 305 (JP)
A Josephson 4-bit register/arithmetic logic unit (RALU) which is adaptable to a prototype computer is demonstrated. The RALU circuit is designed to be composed of ALU, accumulator, registers for 10-bit instructions, 8-bit address, 4-bit data and carry flag, multiplexers, and so on. The circuit consists of a four-junction logic (4JL) gate family or OR, AND, INVERT and AMP gates. A complete set of photomasks of the RALU is generated with the computer-aided-design (CAD) system which performs an automatic standard cell layout, wiring and logic check.
OSTI ID:
5201767
Journal Information:
IEEE (Institute of Electrical and Electronics Engineers) Journal of Solid State Circuits; (USA), Journal Name: IEEE (Institute of Electrical and Electronics Engineers) Journal of Solid State Circuits; (USA) Vol. 24:4; ISSN IJSCB; ISSN 0018-9200
Country of Publication:
United States
Language:
English