A dual-rail PLA with 2-input logic cells

This paper presents a new dual-rail PLA with 2-input logic cells. The 2-input logic cells composed of pass-transistors can realize any 2-input Boolean function and are embedded in a dual-rail PLA without degradation of circuit performance. By using the logic cells, some classes of logic function can be implemented in a smaller circuit area, so that a high-speed and low-power operation is also achieved. The area advantage over the conventional design has been demonstrated by using PLA benchmark circuits. The measured results show that the proposed PLA operates correctly.