Circuit for controlling driver strengths of data and data...

Details Circuit for controlling driver strengths of data and data... Circuit for controlling driver strengths of data and data...

2005-02-22

2005-02-22

Tran, Andrew Q. (Department: 2824)

Static information storage and retrieval

Addressing

Particular decoder or driver circuit

C365S193000, C365S194000, C365S189050, C365S201000, C326S027000, C326S083000, C326S106000

Reexamination Certificate

active

06859412

ABSTRACT:
A circuit for controlling driver strengths of a data and a data strobe in a semiconductor device comprising: a control signal generating unit which generates a first control signal in response to a first address code, generates a second control signal in response to a second address code, and generates a third control signal in response to a third address code; a data driver strength control unit which is selected in response to the first control signal, controls a driver strength of an input data in response to the second control signal, and finely adjusts the driver strength of the input data in response to the third control signal; and a data strobe driver strength control unit which is selected in response to the first control signal, controls a driver strength of an input data strobe in response to the second control signal, and finely adjusts the driver strength of the input data strobe in response to the third control signal.

REFERENCES:
patent: 4476548 (1984-10-01), Matsumoto et al.
patent: 4495626 (1985-01-01), Brunin et al.
patent: 6111446 (2000-08-01), Keeth
patent: 6316979 (2001-11-01), Keeth
patent: 6625067 (2003-09-01), Yi

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