Memory Apparatus Multi-Voltage Power Segmentation
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Solution Overview
Problem
Current memory apparatuses face challenges in reducing power consumption while maintaining high-speed data transfer, as lower voltages can lead to unintended effects on signal quality due to reduced voltage swings, and existing systems often use a single power source for both data transmission and reception, increasing power consumption through long signal lines.
Innovation Solution
A memory apparatus utilizing separate power supplies for data transmission, data reception, and peripheral circuits, with distinct pads and power lines for different voltage levels, allowing for efficient power management and reduced noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If lower voltages are used to decrease power consumption, then power consumption is reduced, but signal quality deteriorates due to reduced voltage swings
Solution Approach 1:
The patent segments the power supply system into multiple independent voltage sources (first voltage for data transmission, second voltage for data reception, third voltage for peripheral circuits). This allows each segment to operate at optimized voltage levels, enabling low-power transmission while maintaining signal quality through appropriate voltage selection for each function.
Solution Approach 2:
Different voltage levels are assigned to different functional blocks based on their specific requirements. The data transmission circuit receives a first voltage optimized for low-power operation, while the data reception circuit receives a second voltage optimized for signal quality, and peripheral circuits receive a third voltage. This local optimization resolves the contradiction between power consumption and signal quality.
2Device complexity
If a single power source is used for both data transmission and reception, then device complexity is reduced, but power consumption increases due to long signal lines
Solution Approach 1:
The power supply is segmented into multiple independent sources distributed to different functional blocks. The data transmission circuit, data reception circuit, and peripheral circuits each receive power from dedicated voltage sources through separate power lines. This segmentation reduces power consumption by eliminating the need to drive long signal lines with high voltage swings, while the modular structure keeps device complexity manageable.
3Reliability
If separate power supplies are used for different circuits, then signal quality is improved by reducing noise interference, but device complexity increases
Solution Approach 1:
The patent implements segmentation by providing separate voltage sources (first voltage, second voltage, third voltage) to different functional blocks through dedicated power lines. This isolates noise from peripheral circuits from sensitive data transmission and reception circuits, improving signal quality. The complexity is managed through systematic organization of multiple voltage sources and power lines.
Solution Approach 2:
Each functional block receives power with quality optimized for its specific function. The data transmission circuit receives a first voltage with characteristics suited for low-power operation, while the data reception circuit receives a second voltage optimized for signal integrity. This local quality optimization improves overall signal quality while the structured approach keeps device complexity manageable.
Data Source
AI summary
A memory apparatus may include first to third pads to provide first to third voltages, respectively, to internal circuits. The first pad may receive a first external voltage, and provide the first voltage. The second and third pads may receive a second external voltage. The second pad may provide the second voltage, and the third pad may provide the third voltage.