Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

1998-04-23

1999-12-28

Hoang, Huan

Static information storage and retrieval

Addressing

36523003, G11C 800

Patent

active

060090359

ABSTRACT:
A main word driver, a main word driver for redundancy and a memory array are adjacent to each other and are arranged in a column or a row direction. Plural pairs of these are arranged in row and column directions and a block is constructed with plural memory arrays arranged in the column direction as a unit. A divisional driver control circuit is arranged in each column of each memory array. A sense amplifier is arranged between respective memory arrays in a row. A data amplifier is arranged with respect to each block. A main word signal for redundancy RMWL' as one output of the main word driver for redundancy within each block is also used as a block selecting signal showing selective activation in a block unit through a block selecting circuit BSL. Thus, it is possible to reduce a layout area of the semiconductor memory device in a divisional word driver system.

REFERENCES:
patent: 5373471 (1994-12-01), Saeki et al.
patent: 5761148 (1998-06-01), Allan et al.
patent: 5777927 (1998-07-01), Takahashi et al.
patent: 5798973 (1998-08-01), Isa
patent: 5808945 (1998-09-01), Arase
patent: 5862086 (1999-01-01), Makimura et al.

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