A 2-ns-Access, 285-MHz, Two-Port Cache Macro Using Double Global Bit-Line Pairs

Kenichi OSADA  Hisayuki HIGUCHI  Koichiro ISHIBASHI  Naotaka HASHIMOTO  Kenji SHIOZAWA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E83-C   No.1   pp.109-114
Publication Date: 2000/01/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Electronic Circuits
Keyword: 
cache,  SRAM,  low power,  two-port,  microprocessor,  

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Summary: 
We fabricated a 16-kB cache macro using 0.35-µm quadruple-metal CMOS technology. This is a 285-MHz, two-port 16-kB (512256 b) cache macro that has a 2-ns access time. This high-speed performance is enabled by a hierarchical bit-line architecture that uses double global bit-line pairs (WGBs), and a high-speed timing-insensitive sense amplifier (ISA) that shortens the access time.