RAS time control circuit and method for use in DRAM using...

Static information storage and retrieval – Read/write circuit – Signals

Reexamination Certificate

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C365S236000

Reexamination Certificate

active

07145814

ABSTRACT:
There is provided a RAS time control circuit for use in a semiconductor memory device. The RAS time control circuit includes a counter for counting the number of external clocks, a comparator for comparing the counted clock number with a preset comparison reference value, a RAS controller for determining a delay time of an internal RAS signal from the comparison result of the comparator, and an internal RAS generator for maintaining an internal RAS signal according to an instruction of the RAS controller.

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patent: 2003-168292 (2003-06-01), None
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patent: 1999-020992 (1999-03-01), None

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