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Front. Inform. Technol. Electron. Eng.  2013, Vol. 14 Issue (10): 808-814    DOI: 10.1631/jzus.C1300069
    
Emitter-couple logic circuit design based on the threshold-arithmetic algebraic system
Mao-qun Yao, Li-bin Zhang
Hangzhou Institute Service Engineering, Hangzhou Normal University, Hangzhou 310036, China; School of Information Science and Engineering, Hangzhou Normal University, Hangzhou 310036, China
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Abstract  Based on the threshold-arithmetic algebraic system which has been proposed for current-mode circuit design, we propose a systematic methodology for emitter-couple logic (ECL) circuit design. Compared to the traditional methodologies and the theory of differential current switches, the proposed methodology uses the HE map and the characteristics of the internal current signals of ECL circuits to determine the external voltage signals. The operations of the HE map are direct and simple, and the current signals are easy to add or subtract, which make this methodology more flexible, direct, and effective, and make it possible to design arbitrary binary and multi-valued logic functions. Two example circuits are designed and simulated by HSPICE using 0.18 μm TSMC technology. Simulation results confirm the validity of the proposed methodology.

Key wordsThreshold-arithmetic algebraic system      HE map      ECL circuit      Current-mode circuits     
Received: 21 March 2013      Published: 08 October 2013
CLC:  TN432  
Cite this article:

Mao-qun Yao, Li-bin Zhang. Emitter-couple logic circuit design based on the threshold-arithmetic algebraic system. Front. Inform. Technol. Electron. Eng., 2013, 14(10): 808-814.

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http://www.zjujournals.com/xueshu/fitee/10.1631/jzus.C1300069     OR     http://www.zjujournals.com/xueshu/fitee/Y2013/V14/I10/808


Emitter-couple logic circuit design based on the threshold-arithmetic algebraic system

Based on the threshold-arithmetic algebraic system which has been proposed for current-mode circuit design, we propose a systematic methodology for emitter-couple logic (ECL) circuit design. Compared to the traditional methodologies and the theory of differential current switches, the proposed methodology uses the HE map and the characteristics of the internal current signals of ECL circuits to determine the external voltage signals. The operations of the HE map are direct and simple, and the current signals are easy to add or subtract, which make this methodology more flexible, direct, and effective, and make it possible to design arbitrary binary and multi-valued logic functions. Two example circuits are designed and simulated by HSPICE using 0.18 μm TSMC technology. Simulation results confirm the validity of the proposed methodology.

关键词: Threshold-arithmetic algebraic system,  HE map,  ECL circuit,  Current-mode circuits 
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