基于二叉树的CVSL电路优化方法

CVSL circuit optimization method based on binary tree

CVSL电路不同于互补CMOS逻辑那样具有固定的构成规则,对于复杂逻辑,若不对电路进行优化,则电路速度、版图面积、功耗等性能指标均会受到影响。因此用一种方法有规律的来完成CVSL电路结构的设计显得十分重要,传统的卡诺图化简法步骤过多,结构不够直观,针对这一缺陷,提出了用二叉树代替传统的卡诺图法的设计思路,从而使CVSL电路结构得到优化。分析结果表明,二叉树优化法较卡诺图法可使电路获得了更加高效的设计结果。

CVSL circuit is different from complementary CMOS logic that has a fixed composition rule. If the complex logic circuit is not optimized, the circuit speed, chip area, power consumption and other performance indicators will be affected. Therefore, a method which can regularly complete the CVSL circuit structure design is very haaportant. Since the traditional Kano figure simplifying method has some shortcomings （operation steps are too many, and structure is not intui- tive）, a train of thought for the design is put forward in this paper, which adopts binary tree instead of the traditional Kano diagram method. The method makes CVSL circuit structure optimized. The analysis results show that the binary tree optimization method is better than Kano Tufake in the efficient circuit design.