Title: Characterization and Mitigation of IR-Drop in RRAM-based Compute In-Memory
Abstract:Compute in-memory (CIM) is an exciting circuit innovation that promises to increase effective memory bandwidth and perform computation on the bitlines of memory sub-arrays. Utilizing embedded non-vola...Compute in-memory (CIM) is an exciting circuit innovation that promises to increase effective memory bandwidth and perform computation on the bitlines of memory sub-arrays. Utilizing embedded non-volatile memories (eNVM) such as resistive random access memory (RRAM), various forms of neural networks can be implemented. Unfortunately, CIM faces new challenges traditional CMOS architectures have avoided. In this work, we characterize the impact of IR-drop and device variation (calibrated with measured data on foundry RRAM) and evaluate different approaches to write verify. Using various voltages and pulse widths we program cells to offset IR-drop and demonstrate a $136.4 \times $ reduction in BER during CIM.Read More
Publication Year: 2022
Publication Date: 2022-05-28
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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