ASIC Peak Power Management Extensions for Multi-Die Memory
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Solution Overview
Problem
Existing power management systems in memory sub-systems face challenges in efficiently managing peak power consumption, particularly in multi-die memory devices, leading to inefficiencies and potential waits for current budget availability, which negatively impact memory array operation performance.
Innovation Solution
Implementing peak power management (PPM) extensions to application-specific integrated circuits (ASICs) that include a GPIO with digital pads to create a PPM network, allowing the ASIC to emulate a die and track current consumption, and utilize a resource manager, PPM budget tracker, and arbitrator to manage current budgets more efficiently across a set of dies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing power management systems are used in multi-die memory devices, then power consumption is managed, but peak power consumption efficiency deteriorates and operation performance decreases due to waits for current budget availability
Solution Approach 1:
The PPM component performs preliminary actions by tracking current consumption in advance and proactively managing current budget allocation. The system monitors and predicts current usage patterns, allowing it to prepare and allocate current budgets before peak power demands occur, eliminating waits for budget availability and improving operational continuity.
2Productivity
If traditional PPM systems are used, then power management is provided, but PPM operation efficiency deteriorates due to inability to accurately track and manage current consumption in multi-die configurations
Solution Approach 1:
The PPM component implements continuous feedback mechanisms by monitoring current consumption across multiple dies in real-time. The system uses this feedback to dynamically adjust current budget allocation, accurately track actual versus predicted consumption, and optimize power distribution. This closed-loop control enables precise measurement and management of current consumption, significantly improving PPM operation efficiency.
Data Source
AI summary
A memory device includes a set of memory dies, each memory die of the set of memory dies including a memory array and first control logic operatively coupled to the memory array, and an application-specific integrated circuit (ASIC) including a general-purpose input/output component (GPIO) including at least one digital pad communicably coupled to each memory die of the set of memory dies, and second control logic, operatively coupled to memory, to perform operations related to peak power management (PPM).