Gated-feedback sense amplifier for single-ended local bit-line memories

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United States of America Patent

PATENT NO 9224437
APP PUB NO 20150117120A1
SERIAL NO

14068653

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Abstract

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A single-ended input sense amplifier uses a pass device to couple the input local bit-line to a global bit-line evaluation node. The sense amplifier also includes a pair of cross-coupled inverters, a first inverter of which has an input that coupled directly to the global bit-line evaluation node. The output of the second inverter is selectively coupled to the global bit-line evaluation node in response to a control signal, so that when the pass device is active, the local bit line charges or discharges the global bit-line evaluation node without being affected substantially by a state of the output of the second inverter. When the control signal is in the other state, the cross-coupled inverter forms a latch. An internal output control circuit of the second inverter interrupts the feedback provided by the second inverter in response to the control signal.

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Patent Owner(s)

  • GLOBALFOUNDRIES INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barth,, Jr John E Williston, US 64 372
Mathews, Abraham Austin, US 16 121
Plass, Donald W Poughkeepsie, US 64 320
Reyer, Kenneth J Stormville, US 19 88

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