Differential current-mode sensing methods and apparatuses...

Static information storage and retrieval – Read/write circuit – Flip-flop used for sensing

Reexamination Certificate

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C365S207000, C365S210130, C365S185200

Reexamination Certificate

active

07075842

ABSTRACT:
Disclosed is a memory architecture where current sense amplifiers are used instead of voltage sense amplifiers, and where the memory cells normally disposed along a single bit line are divided between two half bit lines. Each half bit line is coupled to a respective input of the current sense amplifier. When one of the memory cells is selected for reading, it couples a current related to its stored data state to the half bit line that it is coupled to. During this operation, a reference current is generated on the other half bit line. Also disclosed are novel current sense amplifiers.

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