A novel low-energy match line sensing scheme for ternary content addressable memory using charge sharing

Author

Ali, Syed Iftekhar ; Islam, M.S.

Author_Institution

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

fYear

2011

fDate

14-15 Nov. 2011

Firstpage

1

Lastpage

4

Abstract

A new match line sensing scheme for ternary content addressable memory (TCAM) is presented in this paper. Selective precharge is combined with charge sharing technique to reduce the match line (ML) energy consumption. Simulation performed using 130nm 1.2V CMOS logic shows minimum ~35% dynamic energy reduction compared to current race (CR) scheme. The technique also achieves ~41% speed improvement. Unlike many existing schemes, the proposed scheme uses minimum number of control signals which need to be generated off-chip. Also, there is no analog control signal requiring manual tuning as has been used in CR or many CR-like schemes.

Keywords

CMOS logic circuits; content-addressable storage; low-power electronics; CMOS logic; CR scheme; ML energy consumption; TCAM; analog control signal; charge sharing technique; control signals; current race scheme; dynamic energy reduction; low-energy match line sensing scheme; manual tuning; match line energy consumption; selective precharge; speed improvement; ternary content addressable memory; Computer aided manufacturing; Current measurement; Resource management; Solids; Switches; charge sharing; content-addressable memory; energy consumption; selective precharge; sensing scheme; ternary;

fLanguage

English

Publisher

ieee

Conference_Titel

NORCHIP, 2011

Conference_Location

Lund

Print_ISBN

978-1-4577-0514-4

Electronic_ISBN

978-1-4577-0515-1

Type

conf

DOI

10.1109/NORCHP.2011.6126747

Filename

6126747