Sensing circuitry for reading and verifying the contents of...

Static information storage and retrieval – Floating gate – Particular biasing

Reexamination Certificate

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Details

C365S205000, C365S185220, C365S185210, C365S207000, C365S189070, C365S189090

Reexamination Certificate

active

06906957

ABSTRACT:
Sensing circuitry for reading and verifying the contents of electrically programmable and erasable non-volatile memory cells, comprises a sense amplifier having a first sensing circuit portion connected to a cell to be read and provided with an output terminal for connection to a first input terminal of a comparator, and having a second reference circuit portion connected to a reference current generator and provided with an output terminal for connection to a second input terminal of said comparator, characterized in that said first and said second circuit portions comprise a series of first and second transistors, respectively, being connected between a first voltage reference and a second voltage reference and having respective points of interconnection connected to said output terminals of said first and second circuit portions.

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