Multi-order ternary double-track domino comparator

Abstract

The invention discloses a multi-order ternary double-track domino comparator. The multi-order ternary double-track domino comparator consists of at least two-order ternary low-power-consumption domino comparison units; each comparison unit comprises a first control circuit, a second control circuit and a comparison signal generation circuit; and the first control circuit and the second control circuit are respectively used for controlling generation of signals of logics 2 and 1. A comparison result of a high-order ternary low-power-consumption domino comparison unit serves as a high-order comparison output signal which is connected to a low-order ternary low-power-consumption domino comparison unit, a complementary comparison result of the high-order ternary low-power-consumption domino comparison unit serves as a complementary high-order comparison output signal which is connected to the low-order ternary low-power-consumption domino comparison unit, and the high-order comparison output signal and the complementary high-order comparison output signal, which are connected to the highest-order ternary low-power-consumption domino comparison unit, are the logic 1. The multi-order ternary double-track domino comparator has the advantages of correct logic function and simple structure. Compared with the conventional multi-order ternary domino comparator, the multi-order ternary double-track domino comparator has the obvious characteristic of low power consumption, and about 71.4 percent of power consumption is saved.

Description

technical field [0001] The invention relates to a comparator, in particular to a multi-bit three-value double-track domino comparator. Background technique [0002] The comparator is one of the important digital devices in the digital system, and it is the most basic unit of the arithmetic operator, which is used to judge the magnitude of two values. Using a comparator with a ternary signal, the comparison result (greater than, equal to, less than) can be represented by a ternary signal. Compared with the same number of binary signals, the former can reduce the connection between circuit systems and increase the ability of a single line to carry information. Thereby improving the utilization rate of space and time. With the continuous progress of semiconductor technology, the wiring area has become the main factor limiting the chip area. The circuit designed by using the multi-valued theory can effectively save the chip area and reduce the production cost. [0003] Domino ...

AI Technical Summary

Problems solved by technology

Domino circuits typically exhibit high switching activity due to periodic pre-charging and discharging operations and thus high dynamic energy consumption

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