Secondary sense amplifier with window discriminator for self-tim

Details Secondary sense amplifier with window discriminator for self-tim Secondary sense amplifier with window discriminator for self-tim

1997-09-30

1999-11-09

Nelms, David

Static information storage and retrieval

Read/write circuit

365207, 365191, 365184, 365196, G11C 1604

Patent

active

059826738

ABSTRACT:
A sensing system for sensing data from a data source and driving a pair of output lines in response thereto comprises: a primary sensing device operatively coupled to the data source for sensing and storing said data therein; and a secondary sensing device operatively coupled to the primary sensing device via a pair of input lines and also operatively coupled to the pair of output lines, the secondary sensing device being responsive to a differential voltage generated across the pair of input lines in accordance with said data stored by the primary sensing device and the secondary sensing device having a differential voltage threshold range associated therewith defined by a negative threshold and a positive threshold, whereby the secondary sensing device drives the pair of output lines to a first output condition when the differential voltage across the pair of input lines is within the differential voltage threshold range, to a second output condition when the differential voltage is at least equal to the negative threshold, and to a third output condition when the differential voltage is at least equal to the positive threshold.

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