基于线性与或门的新型超高速数字电路
THE NEW SUPER-HIGH-SPEED DIGITAL CIRCUIT BASED ON LINEAR AND-OR GATES
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摘要: 本文指出了线性与或门与发射极功能逻辑(EFL)的联系,通过理论计算与PSPICE模拟证明了线性与或门的极高速工作特性和可多级级联工作能力。在对线性与或门所需配用的高速开关分析基础上,设计了两种ECL电路。本文还讨论了应用线性与或门设计超高速数字电路的准则以及有关的组合和时序电路设计实例。Abstract: The paper reveals the relation between linear AND-OR gate and the Emitter Function Logic (EFL). With theoretic calculation and PSPICE simulation, the paper proves that the linear AND-OR gates can work at super-high-speed and can be multi-cascaded. On the basis of analyzing the high-speed switch units which coordinate with linear AND-OR gates, two kinds of Emitter Coupled Logic (ECL) circuits are designed. The paper also discusses the design principle of super-high-speed digital circuits and some examples of combinational and sequential circuits using linear AND-OR gate are given.
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