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A 0.7V single-supply SRAM with 0.495um2 cell in 65nm technology utilizing self-write-back sense amplifier and cascaded bit line scheme

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10 Author(s)

A novel SRAM architecture with a high density cell in low supply voltage operation is proposed. A self-write-back sense amplifier realizes cell failure rate improvement by more than two orders of magnitude at 0.6 V. A cascaded bit line scheme saves additional process cost for hierarchical bit line layer. A test chip with 256 kb SRAM utilizing 0.495 um2 cell in 65 nm CMOS technology demonstrated 0.7 V single supply operation.

Published in:

VLSI Circuits, 2008 IEEE Symposium on

Date of Conference:

18-20 June 2008