Power down circuit and method of sense amplifier

Details Power down circuit and method of sense amplifier Power down circuit and method of sense amplifier

1997-10-14

1999-07-06

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 52, 327198, 365226, G11C 706, H03K 302

Patent

active

059202084

ABSTRACT:
A power down circuit and method of a sense amplifier for a semiconductor memory device prevents undesirable power consumption by detecting when sensing is completed in the sense amplifier and inhibiting a power supply current flow to the sense amplifier after the detection. The power down circuit includes a data comparator for comparing data outputs from a sense amplifier to inhibit the supply current of the sense amplifier by detecting the sensing operation completion in the sense amplifier, a data latch unit for latching the comparison result from the data comparator, a data enable/reset unit for outputting or resetting the latched comparison result, and a power down unit for turning on or off the sense amplifier circuit based on the comparison result outputted from the data enable/reset unit.

REFERENCES:
patent: 5160861 (1992-11-01), Lee
patent: 5306970 (1994-04-01), Phillips
patent: 5781041 (1998-07-01), Lee et al.

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