Sensing Circuitry Data Storage with Static Latches
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Solution Overview
Problem
Existing memory devices consume excessive power when moving data values, particularly due to reliance on dynamic capacitance which leads to issues like lost charge and charge coupling, affecting accurate storage.
Innovation Solution
The implementation of additional non-dynamic storage locations, such as static latches, within sensing circuitry elements to actively hold data values, reducing the dependency on dynamic capacitance and enabling more efficient data movement by using charge sharing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dynamic capacitance is used for data storage in sensing circuitry, then data can be stored temporarily, but power consumption increases significantly due to charge loss and charge coupling
Solution Approach 1:
The sensing circuitry element is divided into separate functional components: a first storage location for holding a first data value and a second storage location for holding a second data value. This segmentation allows independent storage of multiple data values without relying on dynamic capacitance, thereby reducing power consumption while maintaining storage accuracy.
Solution Approach 2:
A charge sharing operation is introduced as an intermediary mechanism to transfer charge between storage locations. Instead of directly moving data through high-power dynamic capacitance, the charge sharing operation mediates the data movement process, reducing the power required for data transfer while maintaining integrity.
2Use of energy by moving object
If additional non-dynamic storage locations are added to sensing circuitry, then power consumption during data movement is reduced, but device complexity increases
Solution Approach 1:
The additional non-dynamic storage locations are designed to serve multiple functions: they can store data values, participate in charge sharing operations, and maintain data integrity without requiring complex external control circuits. This multi-functionality reduces the overall device complexity despite adding storage capacity.
Solution Approach 2:
The new storage locations are merged with the existing sensing circuitry element structure, integrating them into the same functional unit. This merging approach avoids the need for separate complex data handling circuits and reduces overall device complexity while achieving lower power consumption.
Data Source
AI summary
The present disclosure includes apparatuses and methods related to storing a data value in a sensing circuitry element. An example method comprises sensing a first data value with a sense amplifier of a sensing circuitry element, moving a second data value from a first storage location of a compute component to a second storage location of the compute component, and storing, in the first storage location, a third data value resulting from a logical operation performed on the first data value and the second data value. The logical operation can be performed by logic circuitry of the sensing circuitry element.