Title :
A noise-tolerant matchline scheme with XOR-based conditional keeper for energy-efficient TCAM
Author :
Hua, Chung-Hsien ; Peng, Chi-Wei ; Hwang, Wei
Author_Institution :
Elite Semicond. Memory Technol. Inc., Hsin-Chu
Abstract :
A novel AND-type match-line scheme with XOR-based conditional keeper for ternary content-addressable memory (TCAM) are presented in this paper. The XOR-based conditional keeper is turned off at some critical moments to reduce the search time and power consumption. High fan-in AND-type match-line schemes are used to demonstrate the effectiveness of the XOR-based conditional keeper in the presence of noise sources. 37.8% search time reduction and 15.6% power saving are achieved by using the proposed TCAM architecture. Based on TSMC 0.13 mum CMOS technology at 1.2 V supply voltage, a 256 words times 128 bits ternary CAM is designed. The simulation results show that the search time of proposed TCAM architecture is 1.17 ns and energy metric of proposed TCAM architecture is 0.752 fJ/search
Keywords :
CMOS integrated circuits; content-addressable storage; integrated circuit design; low-power electronics; memory architecture; power consumption; 0.13 micron; 1.2 V; AND-type match-line scheme; CMOS technology; TSMC; XOR-based conditional keeper; energy-efficient TCAM; noise tolerant matchline scheme; power consumption; search time; ternary content-addressable memory; CADCAM; CMOS technology; Circuit noise; Computer aided manufacturing; Electronics industry; Energy consumption; Energy efficiency; Noise figure; Noise reduction; Semiconductor device noise;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692749
