Multi-port memory device

Details Multi-port memory device Multi-port memory device

2006-03-21

2006-03-21

Le, Vu A. (Department: 2824)

Static information storage and retrieval

Addressing

Multiple port access

C365S230030

Reexamination Certificate

active

07016255

ABSTRACT:
A multi-port memory device can avoid failure of the first high data during initial operation so that reliability and operation characteristic of the memory device can be improved. The multi-port memory device comprises a global data bus having a multiplicity of bus lines, a plurality of banks having a current sensing type transceiving structure for exchanging data with the global data bus, one or more ports having a current sensing type transceiving structure for exchanging data with the global data bus, a plurality of switches, each arranged between the corresponding bank and the bus lines of the global data bus for selectively connecting one of a redundant column and normal columns of the corresponding bank to the global data bus, and a controlling unit for restricting the turn-on period of the switches to the substantial operation period of the corresponding bank.

REFERENCES:
patent: 5319603 (1994-06-01), Watanabe et al.
patent: 5450355 (1995-09-01), Hush
patent: 5726948 (1998-03-01), Hush et al.

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