Voltage regulation device for reference cell of a dynamic random access memory, reference cell, memory and associated process
AssigneeSTMicroelectronics S.r.l.
InventorRichard Ferrant
Life of this patent
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Abstract
A voltage regulation device is for a reference cell of a dynamic random access memory arranged in lines and columns and including a plurality of memory cells. The device includes at least one capacitor of a predetermined capacitance which can be discharged during memory access.
Claims12
Voltage regulation device (5) for reference cell (1) of a dynamic random access memory laid out in lines and in columns, comprising a plurality of memory cells, characterized in that it comprises at least one capacitor (6) of predetermined capacitance which can be discharged during memory access.
Device according to any one of the preceding claims, characterized in that it comprises a second interrupter (8) placed at the output of the said capacitor (6) in order to control discharging of the said capacitor.
Device according to any one of the preceding claims, characterized in that it shares at least one capacitor (12) with at least one other similar device.
Reference cell (1) for dynamic random access memory, characterized in that it comprises a device according to any one of the preceding claims.
Process for regulating the voltage of a reference cell for a dynamic random access memory laid out in lines and in columns, comprising a plurality of memory cells, in which charge is shared between at least two capacitors of predetermined capacitances during an initialization step and one of the two capacitors is discharged during memory access.
Dependencies are inferred from the claim text.