A current race-based technique with dual feedback for match-line energy reduction in ternary content addressable memory

Author

Ali, Syed Imran ; Islam, Md Shariful

Author_Institution

Dept. of Electr. & Electron. Eng., Islamic Univ. of Technol., Gazipur, Bangladesh

fYear

2012

fDate

20-22 Dec. 2012

Firstpage

725

Lastpage

728

Abstract

This paper presents a match line (ML) sensing scheme based on current race (CR) type match line sense amplifier (MLSA). The MLSA uses feedback mechanism twice in order to decrease currents to the mismatched MLs. This reduces the energy consumption and increases voltage margin while maintaining high search speed. Simulation using 130nm 1.2V CMOS logic shows large improvement in voltage margin and ~59% reduction in ML energy consumption compared to conventional CR scheme of similar speed. The proposed technique also shows better performance compared to existing CR-type techniques employing single feedback.

Keywords

CMOS logic circuits; CMOS memory circuits; content-addressable storage; electric sensing devices; feedback amplifiers; ternary logic; CMOS logic circuit; CR; MLSA; current race-based technique; dual feedback mechanism; match line sense amplifier; match-line energy consumption reduction; size 130 nm; ternary content addressable memory; voltage 1.2 V; voltage margin; Associative memory; Energy consumption; Routing; Sensors; Tin; Transistors; content-addressable memory; energy consumption; feedback; match line; sense amplifier; sensing scheme; ternary;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical & Computer Engineering (ICECE), 2012 7th International Conference on

Conference_Location

Dhaka

Print_ISBN

978-1-4673-1434-3

Type

conf

DOI

10.1109/ICECE.2012.6471653

Filename

6471653