Semiconductor memory device having reduced current...

Details Semiconductor memory device having reduced current... Semiconductor memory device having reduced current...

2008-09-09

2010-11-30

Lam, David (Department: 2827)

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

C365S230030, C365S189160, C365S230080

Reexamination Certificate

active

07843759

ABSTRACT:
The present invention describes a semiconductor memory device having a data mask function and includes a common driving control unit for generating a common driving control signal in response to a data mask signal and a write command signal supplied to the common driving control unit. A plurality of driving units are supplied with the common driving control signal and selectively drive data according to the common driving control signal and transmit the driven data to a plurality of data lines, respectively. Accordingly, a driving and data mask operation of the plurality of driving units is controlled by the common driving control unit, which reduces current consumption and a layout area of the circuit.

REFERENCES:
patent: 6351423 (2002-02-01), Ooishi
patent: 6404695 (2002-06-01), Fujino et al.
patent: 05-325545 (1993-12-01), None
patent: 07-013509 (1995-01-01), None

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