Patent ID: 8324922
Filing Date: 2012-12-04
Classification: G01R,H01L

Abstract:
1. A switching circuit comprising: A. functional core logic circuitry having an input, an output, and a tristate control output; B. an input buffer having an output connected to the input of the logic circuitry and an input; C. first switch circuitry having one and another extending leads, the one lead being connected to the input of the input buffer; D. second switch circuitry having one and another extending leads, the one lead being connected to the other lead of the first switch circuitry; E. a tristate output buffer having an input connected to the output of the logic circuitry, an output, and a tristate control input; F. gating circuitry coupling the tristate control output of the logic circuitry to the tristate control input of the tristate output buffer; and G. third switch circuitry having one and another extending leads, the one lead being connected to the other lead of the second switch circuitry and the other lead being connected to the output of the tristate output buffer.