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从描述MTL (并合晶体管逻辑) 电路特征中获得一种简单的器件模型。应用爱伯斯-莫尔(Ebers-Moll) 方程可得到各种电流增益的适当定义,同时说明了MTL器件基本上可视为具有一个附加基极电流源的n-p-n晶体管。导出了这个电流源的强度和实际馈电间的关系。根据电荷控制概念来模似时间特性。应用这个模型,给出了线路延迟,它是电流增益、收集极和发射极时间常数、馈电电流和扇出的函数。
A simple device model is derived from characterizing the MTL (Combining Transistor Logic) circuit. The proper definition of various current gains is obtained using the Ebers-Moll equation and shows that an MTL device can basically be considered an n-p-n transistor with an additional base current source. The relationship between the strength of this current source and the actual feed is derived. According to the concept of charge control to simulate the time characteristics. Using this model, line delay is given as a function of current gain, collector and emitter time constants, feed current, and fan-out.