Row Address Latching With Triple Activate Timing Stabilization
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Solution Overview
Problem
Memory devices face increased power consumption and potential activation of incorrect addresses due to flexible activate timing without constrained minimum thresholds, leading to inefficiencies in accessing memory cells.
Innovation Solution
Implementing triple activate command row address latching, where bits are stored in multiple storage elements and used to ensure accurate address activation by stabilizing the row address with additional bits, even with flexible timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If flexible activate timing is implemented without constrained minimum thresholds, then memory access efficiency is improved, but power consumption increases and incorrect address activations occur
Solution Approach 1:
The patent applies preliminary action by implementing a minimum threshold timing constraint before the activate command can take effect. This preliminary timing requirement ensures that sufficient time elapses between consecutive activate commands, allowing the memory device to properly stabilize the row address and prevent incorrect activations. The threshold acts as a preparatory condition that must be met before the actual memory access operation proceeds, thereby reducing power consumption from spurious activations while maintaining efficient legitimate access patterns.
Solution Approach 2:
The patent employs feedback mechanisms through the timing constraint system that monitors and controls the interval between activate commands. The minimum threshold timing requirement provides feedback to the system about whether sufficient time has elapsed since the previous activate command, preventing premature new activations that would cause incorrect address latching. This feedback loop ensures that only properly timed activate commands are processed, reducing wasted power while maintaining access efficiency for valid operations.
2Productivity
If flexible activate timing is implemented without constrained minimum thresholds, then memory access efficiency is improved, but address activation accuracy deteriorates
Solution Approach 1:
The minimum threshold timing constraint serves as a preliminary action that ensures the row address is fully stabilized before the activate command completes. By requiring a minimum time interval, the system performs necessary address stabilization operations in advance, preventing incorrect address activations while still allowing flexible timing within the constraint. This preliminary timing requirement acts as a safeguard that maintains address accuracy without unduly limiting legitimate access patterns.
Solution Approach 2:
The patent applies beforehand cushioning by introducing a minimum threshold timing margin between consecutive activate commands. This cushioning time buffer protects against address activation errors by ensuring sufficient time for proper address latching and stabilization. The cushioning doesn't prevent flexible timing for valid operations but provides a safety margin that prevents incorrect activations, thereby maintaining address accuracy while preserving memory access efficiency.
Data Source
AI summary
Methods, systems, and devices for triple activate command row address latching are described. For instance, a memory device may receive a first activate command that indicates a first set of bits of a row address, a second activate command that indicates a second set of bits of the row address, and a third activate command that indicates a third set of bits of the row address. The memory device may activate a page of memory based on receiving the first activate command, the second activate command, and the third activate command, where the page of memory is addressed according to the first set of bits, the second set of bits, and the third set of bits.