Memory reading device
AssigneeDolphin Integration
InventorsHervé Covarel, Eric Compagne
Life of this patent
Estimating the term…
Abstract
The invention concerns a device for reading a storage cell (4), comprising a reading differential amplifier (18) having a first input terminal (16) connected to a column of cells (10) and a circuit (34) designed to feed to a second input terminal (20) of the amplifier (18) a reference voltage (Vref). The circuit (34) comprises means (38) for storing the voltage of said column and means (38, 40, 42) for applying as reference voltage (Vref) the stored voltage modified by a predetermined quantity.
Claims8
A device for reading a cell (4) of a memory, comprising:
- a differential sense amplifier (18) having a first input terminal (16) connected to a cell column (10);
- and
- a circuit (34) for providing to a second input terminal (20) of the amplifier (18) a reference voltage (Vref), wherein said circuit (34) comprises:
- a first means (38) for storing the voltage of said column;
- and
- a second means (40, 42) for applying as the reference voltage (Vref) the stored voltage modified by a predetermined amount.
A method for reading a cell (4) of a memory, comprising the steps of:
- storing the voltage of a column just before reading;
- and
- modifying the stored voltage by a predetermined amount and using the modified voltage as a reference voltage.
Dependencies are inferred from the claim text.