Logic function block, logic circuit, integrated circuit and electronic device

Abstract

The invention provides a logic function block, a logic circuit, an integrated circuit and an electronic device. A first power supply and a second power supply are introduced to supply power to an input stage trigger and an output stage trigger of the logic function block, namely two power supplies are intrudced for power supply; the voltage of the two power supplies can be respectively reduced according to whether the logic function block contains a key path or not, and even the voltage of the two power supplies can be reduced to be lower than the minimum power supply voltage of the system, sothat the power consumption can be greatly reduced; under the condition that the clock frequency is fixed, the first clock signal with a large duty ratio can be used to tolerate the circuit delay to agreater extent, so that the circuit works at a lower power supply voltage, the voltage is further reduced, and the power consumption is saved.

Description

technical field [0001] The invention relates to the technical field of integrated circuit manufacturing, in particular to a logic function block, a logic circuit, an integrated circuit and an electronic device. Background technique [0002] In recent years, portable devices such as wearable electronic devices have been widely used in the fields of consumer electronics, medical equipment and industrial instruments, and integrated circuit systems, as the core part of portable electronic devices, have developed rapidly. In the current integrated circuit system design, the power consumption problem has also become one of the important problems to be solved urgently. From the power consumption formula P=CV 2 It can be seen from f that reducing power consumption requires consideration of three major factors: capacitance C, voltage V, and frequency f, and the capacitance C and frequency f of most circuits are fixed, so reducing the voltage V becomes the key to improving power cons...

AI Technical Summary

Problems solved by technology

When the power supply voltage is reduced in order to reduce the power consumption of the integrated circuit system, the reduction of the power supply voltage will cause the delay of the logic circuit in the integrated circuit system to increase, which in turn will cause the logic circuit containing the critical path (critical path) to fail to work in the corresponding system. The clock frequency limits the further reduction of the power supply voltage and cannot achieve lower power consumption.

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