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Self-Controlled High-Performance Precharge-Free Content-Addressable Memory

2017/04/05 by Telajala Venkata Mahendra, Sandeep Mishra, Anup Dandapat
Chemistry · Computer Science · #Caching and Content Delivery #Network Packet Processing and Optimization #Quinazolinone synthesis and applications

paper · doi:10.1109/tvlsi.2017.2685427

openalex publication_date 2017/04/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/11

Abstract

Content-addressable memory (CAM) is a hardware searchengine used for parallel lookup that assures high-speed match but at the cost of higher power consumption. Both low power NAND-type and highspeed NOR-type match-line (ML) schemes suffer from requirement of the precharge prior to the search. Recently, a precharge-free ML structure has been proposed but with inadequate search performance. In this brief, a self-controlled precharge-free CAM (SCPF-CAM) structure is proposed for high-speed applications. The proposed architecture is useful in applications where search time is very crucial to design larger word lengths. The proposed 128×32-bit SCPF-CAM structure has been implemented using predictive 45-nm CMOS process and simulated in SPECTRE at the supply voltage of 1 V. The ML delay using the proposed SCPF-CAM architecture has been reduced by 88% and 73% compared to the precharge-free and traditional NAND-type ML structure.

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