Semiconductor memory device and self-refresh method therefor

Details Semiconductor memory device and self-refresh method therefor Semiconductor memory device and self-refresh method therefor

2006-12-19

2009-08-11

Le, Thong Q (Department: 2827)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S196000, C365S189040, C365S189140, C365S233190

Reexamination Certificate

active

07573772

ABSTRACT:
A semiconductor memory device and a self-refresh method in which the semiconductor memory device includes a plurality of input/output ports having respective independent operation, a period of self-refresh through one of the plurality of input/output ports being subordinate to a kind of operation through another input/output port. Whereby, a refresh characteristic in a multi-port semiconductor memory device including a dual-port semiconductor memory device may be improved.

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