Title
Low-power high-performance NAND match line content addressable memories
Abstract
Content addressable memory (CAM) is used in fully associative VLSI lookup circuits for cache memory, translation lookaside buffers (TLBs), and in Internet Protocol (IP) address comparison. In this paper, the use of dynamic NAND match lines is investigated and compared to conventional NOR match lines in cache applications. To achieve high speed, a hierarchical match line is used. The dynamic stack charge-sharing noise immunity, speed, and actual power savings over a conventional NOR match line are investigated using benchmark data. While random patterns are often used when benchmarking CAM match line power, it is shown to be optimistic compared to address trace data, since addresses are highly correlated. It is also shown that proper address input ordering can provide additional power savings. A simple model for the power in dynamic circuit stacks is derived and compared to power simulation data. Additionally, impact on cache tag area and the scaling of the NAND stack to future processes is described.
Year
DOI
Venue
2006
10.1109/TVLSI.2006.878476
VLSI) Systems, IEEE Transactions
Keywords
Field
DocType
power simulation data,match line,line content addressable memory,cache application,low-power high-performance nand match,benchmarking cam match line,benchmark data,dynamic nand match line,hierarchical match line,actual power saving,additional power saving,address comparison,protocols,computer aided manufacturing,electronics industry,very large scale integration,pattern matching,associative memory,vlsi,content addressable memory,internet protocol,translation lookaside buffer,logic gates,cache memory,logic design,low power electronics
Internet Protocol,Content-addressable memory,Computer science,CPU cache,Cache,Electronic engineering,NAND gate,Content-addressable storage,Computer hardware,Very-large-scale integration,Low-power electronics
Journal
Volume
Issue
ISSN
14
8
1063-8210
Citations 
PageRank 
References 
7
0.67
17
Authors
2
Name
Order
Citations
PageRank
Vikas Chaudhary192.75
Lawrence T. Clark215533.27