| 基于对称函数产生器的对称函数实现 |
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| 引用本文： | 徐月华,杜歆,陈偕雄.基于对称函数产生器的对称函数实现[J].科技通报,2000,16(1):21-26. |
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| 作者姓名： | 徐月华 杜歆 陈偕雄 |
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| 作者单位： | 1. 杭州师范学院物理系,浙江,杭州,310012
2. 浙江大学电子工程系,浙江,杭州,310028 |
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| 摘 要： | 为直接利用现有逻辑器件实现多输出对称函数，通过对２线－４线译码器的逻辑功能和二变量基本对称函数的定义的比较，提出２线－４－线译码器可用作二变量基本对称函数产生器。由于任意ｎ变量的基本对称函数均可通过二变量基本对称函数产生器的树型扩展得到实现，因此，任意ｎ变量的对称函数可以用２线－４线译码器予以实现。文中分别就变量数为奇数和偶数的情况进行了讨论。本文提出的对称函数综合方法在实现多输出对称函数时可获得
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| 关 键 词： | 对称函数 对称函数产生器 逻辑设计 电路结构 |
Realizations of Symmetric Functions Based upon Generator of Symmetric Function |
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| XU Yue-hua,DU Xin,CHEN Xie-xiong.Realizations of Symmetric Functions Based upon Generator of Symmetric Function[J].Bulletin of Science and Technology,2000,16(1):21-26. |
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| Authors: | XU Yue-hua DU Xin CHEN Xie-xiong |
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| Abstract: | In order to realize multiple output symmetric functions by using existing logic devices directly, this paper proposes a two to four decoder can be used as a generator of two variable fundamental symmetric functions by comparing the logic function of two to four decoder and the definition of two variable fundamental symmetric function. Since an arbitrary n variable fundamental symmetric function can be realized in terms of a tree construction expansion of the above generators,an arbitrary n variable symmetric function can be realized by using two to four decoders,and the logic synthesis of symmetric functions with odd number and even number variables is discussed, respectively. The logical synthesis of symmetric functions may obtain the simpler circuit realization for multiple output symmetric functions. |
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| Keywords: | symmetric function generator of symmetric function logic design circuit realization |
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