Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of 74181 Arithmetic Logic Units

74184 Arithmetic Logic Units의 분석

  • Lee, Jae-Seok (Dpt. of Control and Instrumentation Eng., Chung-Arg Univ.) ;
  • Chung, Tae-Sang (School of Electrical and Electronics Eng., Chung-Arg Univ.)
  • 이재석 (중앙대학교 제어계측학과) ;
  • 정태상 (중앙대학교 전자전기공학부)
  • Published : 2000.11.25
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Abstract

The 74181 is arithmetic logic units(ALU)/function generator. This circuit performs 16 binary arithmetic operations on two 4-bit words. And a full carry look-ahead scheme is made available in this device. The 74181 can also be utilized as a comparator. This circuit has been also designed to provide 16 possible functions of two Boolean variables without the use of external circuitry. This paper analyzes the function of the logic and the implementation adopted in the design of 74181. The understanding of the logic characteristics of this chip enables us to improve future applications.

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