Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

2006-05-09

2006-05-09

Elms, Richard (Department: 2824)

Static information storage and retrieval

Addressing

Multiple port access

C365S230010, C365S230060

Reexamination Certificate

active

07042793

ABSTRACT:
A column switch in a two-port SRAM (static random access memory) is provided with A-port switches, B-port switches, and inter-port switches. When it is detected that an A-port row address and a B-port row address match each other, all of the B-port switches are turned off, and an A-port bit line pair for a column selected according to A-port column decode signals is coupled to an A-port data line pair, while an A-port bit line pair for a column selected according to B-port column decode signals is coupled to a B-port data line pair.

REFERENCES:
patent: 6181634 (2001-01-01), Okita
patent: 6288969 (2001-09-01), Gibbins et al.
patent: 2005/0083765 (2005-04-01), Jeong et al.
patent: 10-21687 (1998-01-01), None

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