학술논문

Reconfigurable 2T2R ReRAM with Split Word-Lines for TCAM Operation and In-Memory Computing
Document Type
Conference
Source
2020 IEEE International Symposium on Circuits and Systems (ISCAS) Circuits and Systems (ISCAS), 2020 IEEE International Symposium on. :1-5 Oct, 2020
Subject
Components, Circuits, Devices and Systems
Computer architecture
Nonvolatile memory
Sensors
Random access memory
Decoding
Discharges (electric)
Transistors
Non-volatile memory
ReRAM
TCAM
inmemory computing
Language
ISSN
2158-1525
Abstract
The increased latency and power consumption due to data movement between memory and ALU have become the major obstacle in modern big-data and machine learning applications. Beyond von-Neumann architectures, particularly in-memory computing, is under intensive research to overcome this memory access bottleneck. In this work, we propose a 2T2R ReRAM structure that supports ternary content addressable memory (TCAM), logic in-memory operations, and in-memory dot product for Deep Neural Networks (DNNs) besides the normal non-volatile memory (NVM) functionality. This is achieved by employing reconfigurable sense amplifiers and novel word-line drivers. The proposed architecture can serve as a high-density storage system as well as an accelerator for data-intensive applications. Simulation results verify that the proposed 2T2R structure functions correctly for TCAM search, logic in-memory operations and in-memory dot product.