Browsing by Author "Huang, Jason"

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0.339fJ/bit/search Energy-Efficient TCAM Macro Design in 40nm LP CMOS
(2014)
Huang, Po-Tsang
;
Lai, Shu-Lin
;
Chuang, Ching-Te
;
Hwang, Wei
;
Huang, Jason
In this paper, a 256x40 energy-efficient ternary content addressable memory (TCAM) macro is designed and implemented in 40nm low power (LP) CMOS. Due to the thicker gate oxide in LP process, a 16T TCAM cell with p-type comparison circuits is proposed to increase the I-on/I-off difference of the dynamic circuitry. To further improve energy efficiency, don\'t-care-based ripple search-lines/bit-lines are used to reduce both the switching activities and wire capacitance. Moreover, column-based data-aware power control is employed for leakage power reduction and write-ability improvements. The experimental results show a leakage power reduction of 28.9%, a search-line power reduction of 31.74% and an energy efficiency metric of the TCAM macro of 0.339 fJ/bit/search.