Patent ID: 6801048
Filing Date: 2004-10-05
Classification: G01R,G11C,H01L,H04J

Abstract:
A switching apparatus for switching first and second voltages to a function circuit in at least one integrated circuit die having at least one external communication terminal, the at least one integrated circuit die being provided in a module having a module terminal for receiving the first voltage from circuitry external to the module, the switching apparatus comprising:a switching circuit connected to the at least one external communication terminal between the module terminal and the function circuit to selectively isolate the function circuit from the module terminal and to conduct the first voltage to the function circuit, the switching circuit comprising a programmable circuit for isolating the function circuit, the programmable circuit including at least one programmable element; and an impedance circuit to conduct the second voltage to the function circuit upon isolation of the function circuit from the module terminal and to support a voltage differential between the first voltage at the function circuit and the second voltage.