Patent ID: 7173480

Claim:
A device for controlling an operation of an internal voltage generator, comprising: an internal voltage driver operatively connected to the internal voltage generator and to an output terminal of the device, the internal voltage driver configured to output an internal output voltage signal to the output terminal of the device; an internal voltage over-driver operatively connected to the internal voltage driver and to an input terminal of the device, wherein the internal voltage over-driver configured to compensate for a potential level change at the output terminal of the device, the internal voltage over-driver comprising: an enable delay circuit operatively connected to the input terminal of the device, the enable delay circuit having a transmission path operatively connected between the Input terminal of the device and the output node of the enable delay circuit in which the transmission path through the enable delay circuit comprises a plurality of switches interconnected operatively to a plurality of test mode enable signal lines, and a disable delay circuit operatively connected to the internal voltage driver wherein the disable delay circuit having a transmission line operatively connected between an input node of the disable delay circuit and the output node of the disable delay circuit in which the transmission line through the disable delay circuit comprising a plurality of RC time delay components interconnected operatively to a plurality of test mode disable signal lines; and a controller operatively connected to the internal voltage over-driver, to the internal voltage driver, and to the output terminal of the device, wherein the controller operatively connected to output nodes of the enable and disable delay circuits of internal voltage over-driver, the controller configured to control an enable timing and a disable timing of the internal voltage over-driver.