Sensing circuit with charge recycling

Details Sensing circuit with charge recycling Sensing circuit with charge recycling

1998-09-28

2000-01-04

Nelms, David

Static information storage and retrieval

Read/write circuit

Differential sensing

365203, G11C 702

Patent

active

060117389

ABSTRACT:
A circuit for reading data from a memory device reduces electric power consumption by recycling in a precharge period the charge consumed in a preceding sensing period. The circuit includes a pair of data lines set to a voltage level higher than a precharge voltage by the sensing operation of a pull-up amplifier, and a pair of data lines set to a voltage level lower than the precharge voltage by the sensing operation of a pull-down amplifier. The charge consumed in the sensing period is recycled by electrically connecting the two pairs of data lines, respectively, during a succeeding precharge period.

REFERENCES:
patent: 5426603 (1995-06-01), Nakamura et al.
patent: 5491435 (1996-02-01), Mun et al.
patent: 5528552 (1996-06-01), Kamisaki
patent: 5768201 (1998-06-01), Oh
patent: 5859548 (1999-01-01), Kong
patent: 5877993 (1999-03-01), Biegel et al.

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