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(Korea Advanced Institute of Science and Technology (KAIST) Daejeon) (Korea Advanced Institute of Science and Technology (KAIST) Daejeon) (Korea Advanced Institute of Science and Technology (KAIST) Daejeon) (Korea Advanced Institute of Science and Technology (KAIST) Daejeon) (Korea Advanced Institute of Science and Technology (KAIST) Daejeon) (Korea Advanced Institute of Science and Technology (KAIST) Daejeon) (Korea Advanced Institute of Science and Technology (KAIST) Daejeon)
저널정보
대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.25 No.4
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    초록·키워드

    Spiking Neural Network (SNN) Computing-In-Memory (CIM) achieves high macro-level energy efficiency but struggles with system-level efficiency due to excessive external memory access (EMA) caused by inter- mediate activation memory demands. To address this, a high-capacity SNN-CIM capable of managing large weight loads is essential. This paper introduces a high-density 1T1C eDRAM-based SNN-CIM processor that significantly enhances system-level energy efficiency through two key features: a high-density, low-power Reconfigurable Neuro-Cell Array (ReNCA) that reuses the 1T1C cell array and employs a charge pump, achieving a 41% area and 90% power reduction and a reconfigurable CIM architecture with dual-mode ReNCA and Dynamic Adjustable Neuron Link (DAN Link) to optimize EMA for activations and weights. These innovations collectively improve system-level energy efficiency by 10×, setting a new benchmark for performance.

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      UCI(KEPA) : I410-151-25-02-093953219