Unified Termination Circuitry for Low-Capacitance Memory Interfaces
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Solution Overview
Problem
Conventional memory sub-systems face performance degradation due to separate transmit and receive mode termination circuitry, which increases parasitic capacitance and occupies more space, limiting the addition of other components.
Innovation Solution
A configurable termination circuitry that combines both transmit and receive mode termination into a single circuit, reducing parasitic capacitance and space usage, allowing for increased functionality and performance by integrating additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate transmit mode termination circuitry and receive mode termination circuitry are used, then signal transmission and reception can be achieved, but parasitic capacitance increases and space occupation increases
Solution Approach 1:
The patent combines separate transmit mode termination circuitry and receive mode termination circuitry into a single unified termination circuitry. This merging reduces the total parasitic capacitance by eliminating redundant circuit elements and interconnections, while still providing both transmit and receive termination functions through a shared circuit architecture.
Solution Approach 2:
The unified termination circuitry is designed to perform multiple functions - serving both as transmit mode termination and receive mode termination. The circuit can be configured or switched to provide appropriate termination impedance for either transmit or receive operations, eliminating the need for separate dedicated circuits for each function.
2Reliability
If separate transmit mode termination circuitry and receive mode termination circuitry are used, then signal transmission and reception can be achieved, but space occupation increases limiting additional components
Solution Approach 1:
The patent merges separate transmit and receive termination circuits into a single unified circuit structure, significantly reducing the area occupied on the circuit board or integrated circuit. This consolidation eliminates duplicate components and interconnections, freeing up space that can be utilized for additional functional components or improved layout optimization.
3Object-generated harmful factors
If combined termination circuitry is used, then parasitic capacitance decreases and space is reduced, but configuration complexity may increase
Solution Approach 1:
The unified termination circuitry incorporates dynamic switching or configuration capability that allows it to adapt between transmit mode and receive mode operations. This dynamic behavior is managed through control logic that automatically or manually configures the circuit appropriate state, masking the underlying complexity from the user while maintaining simple operation.
Data Source
AI summary
A resistance of configurable termination circuitry located at an interface between a memory component and a processing device is adjusted. The configurable termination circuitry includes a plurality of transistors, a plurality of switches coupled to the plurality of transistors, and a plurality of resistors coupled to the plurality of switches. The resistance of the configurable termination circuitry is adjusted based on a mode of the configurable termination circuitry.