Fuse Voltage Generator Power Management in Memory Devices
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Solution Overview
Problem
Memory devices with fuse storage systems consume high power due to the constant provision of fuse voltage, which is not efficiently managed.
Innovation Solution
A memory device is designed with a fuse voltage generator that generates fuse voltage only in response to an enable signal at a first logic level and stops generating it at a second logic level, controlled by a logic circuit determining the enable signal based on operating signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fuse voltage is always provided to the fuse storage, then the fuse storage can continuously store and output setting data, but the power consumption of the memory device increases
Solution Approach 1:
The fuse voltage generator is controlled to generate fuse voltage only during specific operation modes (self-refresh mode or power-down mode) rather than continuously. The logic circuit determines when to enable fuse voltage generation based on the current operation mode, creating a periodic rather than continuous voltage supply that reduces power consumption while maintaining necessary functionality.
2Productivity
If the fuse voltage generator is always active, then the setting data can be continuously accessed, but the power consumption increases in specific operation modes
Solution Approach 1:
The system dynamically adjusts the operation of the fuse voltage generator based on the current operation mode. The logic circuit monitors operation signals and dynamically enables or disables the fuse voltage generation accordingly, making the system adaptable to different operational requirements rather than operating in a static, always-on state.
Data Source
AI summary
The memory device of the disclosure includes a fuse voltage generator, a fuse storage and a logic circuit. The fuse voltage generator generates a fuse voltage in response to an enable signal having a first logic level, and stop generating the fuse voltage in response to the enable signal having a second logic level. The fuse storage storages a setting data of the memory device. The fuse storage outputs the setting data in response to the fuse voltage. The logic circuit generates the enable signal in response to at least two operating signals.