Flip-Flop Control Signal Generation for Low-Power Data Retention
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Solution Overview
Problem
As semiconductor integrated circuits become more performance-oriented and integrated, the existing flip-flop circuits face challenges in efficiently managing power consumption while maintaining data storage and retention capabilities.
Innovation Solution
The proposed flip-flop circuit incorporates a control signal generation circuit, master and slave latch circuits, and output inverters to generate and manage control signals based on a clock signal and input signals, optimizing power usage by adjusting the logic levels of control signals to reduce current consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of flip-flop circuits is increased to achieve higher performance and integration, then the data storage capability is improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic control signal generation where the control signals are adjusted based on the actual state of the flip-flop circuit. The control signal generation circuit dynamically changes the logic levels of control signals to match the storage state, enabling the circuit to operate in a low-power mode when appropriate, thus reducing overall power consumption while maintaining data storage capability
Solution Approach 2:
The patent changes the parameter of control signal logic levels dynamically. By adjusting the logic levels of control signals based on the storage state of the flip-flop circuit, the patent optimizes power consumption. When the storage state matches the control signal level, the circuit enters a low-power operation state, effectively reducing energy usage while preserving data storage functionality
2Reliability
If conventional flip-flop circuits are used to maintain data storage and retention, then the data integrity is preserved, but the power consumption is high
Solution Approach 1:
The patent implements a feedback mechanism where the control signal generation circuit monitors the storage state of the flip-flop circuit and adjusts the control signals accordingly. This feedback loop ensures that control signals are always synchronized with the actual data state, maintaining data integrity while enabling low-power operation when the feedback indicates appropriate conditions
Solution Approach 2:
The control signal generation circuit automatically adjusts control signals based on the storage state without external intervention. The circuit serves itself by monitoring its own state and making appropriate adjustments to control signal levels, thereby maintaining data integrity while optimizing power consumption autonomously
Data Source
AI summary
A flip-flop circuit includes a first master latch circuit transmitting an inverted signal of an input signal received from an external device to a first node and transmitting an inverted signal of a signal of the first node to a second node, according to a first control signal having a first logic level or a second control signal having a second logic level, a first slave latch circuit transmitting an inverted signal of a signal of the second node to a third node according to the first control signal having the second logic level or the second control signal having the first logic level, a first output inverter generating a first output signal by inverting a signal of the third node, and a first control signal generation circuit generating the first control signal and the second control signal based on a clock signal and the signal of the first node.