Pulse flip-flop

Abstract

A pulse-based flip-flop responses to first and second clock pulse signals and latch a data input signal so as to convert the data input signal to a data output signal. The pulse-based flip-flop contains a pulse generator and a data latch. The pulse generator contains a first inverter and a signal delay circuit and is used for receiving the first clock pulse signal and generating the second clock pulse signal. The data latch contains a transfer circuit, a latch circuit and a control circuit. The data latch responses to first and second clock pulse signals and is used for latching a data input signal and outputting a data output signal. The transfer circuit is used for transferring the data input signal. The latch circuit is electrically connected with the transfer circuit and is used for receiving and latching the data input signal and outputting the data output signal. The control circuit is electrically connected with the latch circuit and is used for providing voltage to control on / off of the latch circuit.

Description

technical field [0001] The present invention relates to a flip-flop (FF), and in particular to a pulse flip-flop. Background technique [0002] In recent years, due to the popularization of various portable and consumer electronic products (such as: smart phones, digital cameras, notebook computers and sensing systems for medical purposes, etc.), the design of electronic products tends to be low power, low operating voltage and low Leakage design. [0003] A flip-flop (FF) is a circuit element that stores data based on an edge trigger of a clock signal. Generally, the dynamic power and leakage current consumed by a flip-flop account for about 40-60% of the overall system. , is a circuit element with high energy consumption and high leakage current. [0004] A pulse-based flip-flop is composed of a pulse generator and a data latch. Generally, when designing a pulse-based flip-flop, only focus on reducing the dynamic power. However, the leakage current and the working volta...

AI Technical Summary

Problems solved by technology

[0004] A pulse-based flip-flop is composed of a pulse generator and a data latch. Generally, when designing a pulse-based flip-flop, only focus on reducing the dynamic power. It is impossible to reduce the leakage current and the operating voltage at the same time

For example, pulsed flip-flops designed with dynamic circuits, domino circuits and pre-charged circuits are difficult to maintain correct logic operation at low operating voltages

[0005] In addition, the latches in most pulse flip-flops often use two inverters to connect (that is, the output terminal of one inverter is connected to the input terminal of the other inverter), which is easy to write data. In case of current competition

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