Method and apparatus for controlling refresh operations in a...

Details Method and apparatus for controlling refresh operations in a... Method and apparatus for controlling refresh operations in a...

2006-04-11

2006-04-11

Nguyen, Van Thu (Department: 2824)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S189070, C365S189090, C365S236000

Reexamination Certificate

active

07027343

ABSTRACT:
A method and apparatus are provided for controlling refresh operations of a dynamic memory device. The temperature of the dynamic memory device is detected. The detected temperature is then used to adjust a refresh rate of the dynamic memory device to compensate for increased leakage at higher temperatures and more closely tailor the timing of the refresh operations to the conditions of the dynamic memory device.

REFERENCES:
patent: 5532968 (1996-07-01), Lee
patent: 6452845 (2002-09-01), Merritt
patent: 6452852 (2002-09-01), Bohm et al.
patent: 6489831 (2002-12-01), Matranga et al.
A. Bakker, et al. “Micropower CMOS Temperature Sensor with Digital Output”IEEE Journal of Solid-State Circuits,vol. 31 No. 7, Jul. 1996.
J. Sim, et al. “Binary Weighted Temperature Sensor Adjustment Schemes” pp. 294-297,Symposium of VLSI Circuits,2002.

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