Configurable 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 mode and receive mode termination circuitry, which increases parasitic capacitance and occupies more space, limiting the addition of other components.
Innovation Solution
The integration of transmit mode and receive mode termination circuitry into a single configurable circuitry within the memory sub-system, reducing parasitic capacitance and occupying less space, thereby allowing for additional components and improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate transmit mode and receive mode termination circuitry are used, then signal transmission and reception are ensured, but parasitic capacitance increases and device area increases
Solution Approach 1:
The patent combines separate transmit mode termination circuitry and receive mode termination circuitry into a single integrated termination circuit. This merging reduces the overall device area and decreases parasitic capacitance while maintaining the functionality of both transmit and receive operations through a unified circuit architecture.
Solution Approach 2:
The integrated termination circuit is designed to perform multiple functions - it can operate in transmit mode, receive mode, or high impedance mode. This multi-functionality allows a single circuit to replace what would traditionally require separate dedicated circuits for each mode, thereby reducing area and parasitic capacitance.
2Reliability
If separate transmit mode and receive mode termination circuitry are used, then signal transmission and reception are ensured, but device area increases
Solution Approach 1:
The patent merges separate transmit and receive termination circuits into a single integrated circuit, directly reducing the device area occupied by termination circuitry while maintaining full functionality for both transmit and receive operations.
Solution Approach 2:
The unified termination circuit is designed with multi-functionality, capable of operating in transmit mode, receive mode, or high impedance mode as needed. This allows one circuit to perform the work of multiple separate circuits, freeing up valuable device area.
3Adaptability or versatility
If more components are added to memory sub-system, then functionality is enhanced, but space for additional components is limited
Solution Approach 1:
By merging termination circuitry into a more compact integrated form, the patent frees up device area that can then be allocated to additional functional components, enhancing the overall capability and versatility of the memory sub-system.
Solution Approach 2:
The integrated termination circuit allows for more efficient spatial arrangement of components, enabling additional functionality to be added to the memory sub-system by optimizing the use of available device area.
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.