Accelerated single-ended sensing for a memory circuit

Details Accelerated single-ended sensing for a memory circuit Accelerated single-ended sensing for a memory circuit

2006-07-26

2008-10-07

Elms, Richard (Department: 2824)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S210120, C365S205000, C365S207000, C365S196000

Reexamination Certificate

active

07433254

ABSTRACT:
A single-ended sensing circuit is provided for use with a memory circuit including a plurality of bit lines and a plurality of memory cells connected to the bit lines. The sensing circuit includes at least one charge sharing circuit and at least one switching circuit connected to the charge sharing circuit. The switching circuit is operative to selectively connect the charge sharing circuit to at least a given one of the bit lines as a function of a first control signal supplied to the switching circuit. The sensing circuit further includes at least one comparator circuit connected to the given bit line. The comparator circuit is operative to generate an output signal indicative of a logical state of a memory cell connected to the given bit line. The charge sharing circuit is operative to remove an amount of charge on the given bit line so as to reduce a voltage on the given bit line in conjunction with a read access of the memory cell.

REFERENCES:
patent: 6771551 (2004-08-01), Terzioglu et al.
patent: 7126869 (2006-10-01), Chou
patent: 7200041 (2007-04-01), Marotta et al.
patent: 2004/0169529 (2004-09-01), Afghahi et al.
patent: 2008/0025119 (2008-01-01), Dudeck et al.

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