Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2007-08-28
2007-08-28
Cho, James H. (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S023000
Reexamination Certificate
active
11154765
ABSTRACT:
Systems and methods for circuits with substantially equal propagation delay while providing different drive strengths are disclosed. These systems and methods may allow for a circuit with a drive strength that is some ratio of an arbitrary strength full drive strength circuit. Additionally, these circuits may have substantially the same input capacitance and feedback current as the baseline drive circuit. The input of such a circuit may be coupled to three nodes, one of which is an inverter coupled to the logic to be driven, the second of which is dummy logic, and the third of which is an inverter the output of which is left floating.
REFERENCES:
Weste, Neil H.E. , “Principles of CMOS VLSI Design”, 3rdEd., pp. 218-221, May 11, 2004.
Himeno Toshihiko
Weitzel Stephen D.
Cho James H.
Kabushiki Kaisha Toshiba
Sprinkle IP Law Group
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