Data Buffer Amplifier Swing Level Adaptation
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Solution Overview
Problem
Memory devices face challenges in efficiently transmitting data with varying swing levels, as existing data buffers are not designed to adaptively manage different swing levels, leading to inefficiencies and increased current consumption.
Innovation Solution
A data buffer is designed with first and second amplifiers that can output data by inverting input data, where both amplifiers are activated for high swing levels and one amplifier is activated for lower swing levels, allowing for selective data transmission modes based on swing levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both amplifiers are activated to output data, then data transmission reliability is improved for wide swing levels, but current consumption increases
Solution Approach 1:
The data buffer dynamically adjusts the number of active amplifiers based on the swing level of input data. When swing level exceeds a threshold, both amplifiers are activated to ensure reliable data transmission. When swing level is within acceptable range, only one amplifier is activated to reduce current consumption. This dynamic adaptation resolves the contradiction between reliability and energy efficiency.
Solution Approach 2:
The system changes the operational parameters (number of active amplifiers) based on the swing level parameter of the input data. By monitoring swing level and adjusting amplifier activation status, the system optimizes the balance between transmission reliability and current consumption under different operating conditions.
2Use of energy by moving object
If one amplifier is activated for narrow swing levels, then current consumption is reduced, but data transmission capability is limited
Solution Approach 1:
The data buffer dynamically switches between single-amplifier and dual-amplifier modes based on swing level detection. For narrow swing levels within threshold, single-amplifier mode reduces current consumption while maintaining adequate transmission capability. For wide swing levels exceeding threshold, dual-amplifier mode activates to enhance transmission capability, thus adapting to different data conditions.
Solution Approach 2:
The system adjusts the operational configuration (number of active amplifiers) according to the swing level parameter. This parameter-based control enables the system to optimize between energy efficiency and transmission capability by selecting appropriate operational modes based on actual data characteristics.
3Device complexity
If existing data buffers are used without adaptive swing level management, then device complexity is low, but transmission efficiency decreases
Solution Approach 1:
The data buffer incorporates swing level detection and threshold comparison mechanisms that provide feedback on input data characteristics. Based on this feedback, the system automatically adjusts amplifier activation to optimize transmission efficiency. This feedback-based adaptation improves productivity while adding only minimal complexity to the buffer structure.
Data Source
AI summary
There are provided a data buffer and a memory system having the same. The data buffer includes first and second amplifiers configured to output output data by inverting input data, the first and second amplifiers having coupled output nodes to which the output data is output, wherein both of the first and second amplifiers are activated to output the output data when the input data has a first swing level, and wherein one of the first and second amplifiers is activated to output the output data when the input data has a second swing level narrower than the first swing level.