Presentation
Fast and Accurate RRAM Write-and-Verify via Hadamard-Encoded Read and ADC-Energy-Reduced HARP
DescriptionWe propose two circuit-aware write–verify (WV) schemes for resistive-RAM (RRAM)–based analog compute-in-memory (ACiM) that reduce the dominant cost of analog-to-digital converters (ADCs). Hadamard-Encoded Parallel-Verify (HD-PV) improves readout signal-to-noise ratio through Hadamard-driven vector sensing and inverse decoding, enhancing robustness without added analog hardware. Hadamard-based ADC-Energy-Reduced Parallel-Verify (HARP) preserves this SNR benefit while replacing full successive-approximation-register (SAR) conversions with one-shot decisions, lowering energy. On CIFAR-10, conventional WV suffers large accuracy loss, whereas HD-PV and HARP keep degradation under 3% and offer up to 3× speedup, with HARP achieving the lowest overall energy.
Event Type
Work in Progress
TimeMonday, July 276:53pm - 6:54pm PDT
LocationExhibit Hall
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