Abstract
This paper presents the design of a low-power ternary content-addressable memory (TCAM) based on the proposed double-feedback match-line sense amplifier (DF-MLSA). DF-MLSA achieves power savings by reducing match-line voltage swing and search-line switching activity in a TCAM and employs the double positive-feedback network to boost the search speed of the TCAM. We have employed Hspice to evaluate various match-line sensing circuits using the Berkeley Predictive Technology Model (PTM) for 65 nm transistor model with supply voltage of 1.1 V and temperature of 25 °C. The simulation results show that the proposed DF-MLSA can achieve a search time of 0.49699 ns and an energy consumption of 0.201474 fJ/bit/search. The measured results show that the proposed DF-MLSA can reduce the energy consumption by 85.481%, 21.195%, and 10.545% compared to the conventional precharge MLSA, the stability-based MLSA, and the positive-feedback MLSA, respectively.
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Chang, MC., Hsieh, MH., Tsai, SJ. (2013). Design of a Low-Power Content-Addressable Memory Using Double-Feedback Match-Line Sense Amplifiers. In: Jin, D., Lin, S. (eds) Advances in Mechanical and Electronic Engineering. Lecture Notes in Electrical Engineering, vol 178. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31528-2_68
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DOI: https://doi.org/10.1007/978-3-642-31528-2_68
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31527-5
Online ISBN: 978-3-642-31528-2
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