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Efficient Analog CAM Design
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Efficient Analog CAM Design
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Content Addressable Memories (CAMs) are considered a key-enabler for in-memory computing (IMC). IMC shows order of magnitude improvement in energy efficiency and throughput compared to traditional computing techniques. Recently, analog CAMs (aCAMs) were proposed as a means to improve storage density and energy efficiency. In this work, we propose two new aCAM cells to improve data encoding and robustness as compared to existing aCAM cells. We propose a methodology to choose the margin and interval width for data encoding. In addition, we perform a comprehensive comparison against prior work in terms of the number of intervals, noise sensitivity, dynamic range, energy, latency, area, and probability of failure.
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Cited by 1 Pith paper
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A Fast and Energy-Efficient Latch-Based Memristive Analog Content-Addressable Memory
SALM aCAM reduces read energy by 33% versus 6T2M at same latency, eliminates gain and crosstalk limits, and maintains near-software accuracy in decision-tree workloads via latch sharing and dataset-aware optimization ...
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