Method and apparatus for a configurable low power high...

Details Method and apparatus for a configurable low power high... Method and apparatus for a configurable low power high...

2007-06-07

2008-12-16

Tan, Vibol (Department: 2819)

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Field-effect transistor

C326S104000, C326S105000

Reexamination Certificate

active

07466164

ABSTRACT:
A configurable, low power high fan-in multiplexer (MUX) is disclosed. The MUX circuit includes multiple current control elements, which each include multiple inverters coupled to a transmission gate. Each current control element receives a data signal and a select signal that corresponds to the data signal. If a select signal exceeds a threshold value (e.g., a logical “1”), the select signal deactivates a pull-up transistor (e.g., a p-type field effect transistor), and the transmission gate enables the corresponding data signal to provide input to a logic gate (e.g., a NAND gate) coupled to the output of the MUX. If the select signal does not exceed the threshold value, the select signal activates the pull-up transistor, and the transmission gate prevents the corresponding data signal from providing input to the logic gate.

REFERENCES:
patent: 5920210 (1999-07-01), Kaplinsky
patent: 6954917 (2005-10-01), How et al.
patent: 7053662 (2006-05-01), Silver et al.
patent: 7129755 (2006-10-01), Campbell

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