Multi-supply symmetric driver circuit and timing method

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United States of America Patent

PATENT NO 8723557
APP PUB NO 20120206167A1
SERIAL NO

13153031

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Circuit includes, in part, random access memory cells, column decoders, row decoders, and write driver circuit. Driver circuit is responsive to data and control signals. Writing data includes multiple write phases, each phase driving predetermined current through selected cell by driver setting predetermined voltages to first and second lines. Voltages are in sets such that sequential voltages of each set correspond to respective phase. During writing of first data to selected cell, driver circuit causes first signal line to be at second voltage set and second signal line to be at first voltage set. Second voltage set is greater than first voltage set. During writing of second data to selected cell, driver cause first signal line to be at third voltage set and second signal line to be at fourth voltage set. Third voltage set is smaller than the fourth voltage set.

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Patent Owner(s)

Patent OwnerAddress
SAMSUNG SEMICONDUCTOR INC3655 NORTH FIRST STREET SAN JOSE CA 95134

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Apalkov, Dmytro San Jose, US 90 2016
Ong, Adrian E Pleasanton, US 124 2563

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