Variable Speed Read-Write Conversion Circuit for DRAM
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Solution Overview
Problem
Dynamic Random Access Memory (DRAM) faces challenges with fixed read-write operation speeds, leading to high power consumption during high-speed operations and inefficiency during low-speed periods, as it struggles to meet varying performance demands.
Innovation Solution
A read-write conversion circuit with a control module that outputs variable read-write control signals in response to configuration signals, allowing the speed of read-write operations to be adjusted, incorporating local and global data lines and amplifiers to manage data transmission and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the read-write operation speed is fixed at high speed, then the data transmission capability is improved, but the power consumption increases during low-speed periods
Solution Approach 1:
The patent implements variable read-write operation speeds through a control module that adjusts the speed based on configuration signals. The read-write conversion circuit can dynamically switch between different speed modes (e.g., first speed and second speed) to match actual operational requirements, thereby reducing power consumption during low-speed periods while maintaining high-speed capability when needed.
2Use of energy by moving object
If the read-write operation speed is fixed at low speed, then the power consumption is reduced, but the data transmission capability is limited
Solution Approach 1:
The control module enables the read-write conversion circuit to dynamically adjust its operating speed based on configuration signals. When high data transmission capability is required, the circuit operates at high speed; when power saving is prioritized, it switches to low speed mode. This dynamic adaptability resolves the contradiction between power consumption and data transmission capability.
3Adaptability or versatility
If the read-write operation speed is made variable, then the adaptability to different performance demands is improved, but the device complexity increases
Solution Approach 1:
The control module is designed to receive various configuration signals and automatically select appropriate read-write operation speeds. This multi-functional control mechanism, while adding some complexity, enables the read-write conversion circuit to adapt to different performance demands without requiring multiple separate circuits for different speed modes.
Data Source
AI summary
A read-write conversion circuit includes: a read-write conversion module, performing a read-write operation in response to a read-write control signal to implement data transmission between each of a local data line, a local complementary data line, and a global data line, data signals of the local data line and data signals of the local complementary data line being opposite in phase during the read-write operation, and a control module, outputting a variable read-write control signal in response to a read-write speed configuration signal to control a speed of the read-write operation of the read-write conversion module to be variable.