Patent ID: 6496027
Filing Date: 2002-12-17
Classification: G01R,G11C

Abstract:
A system for producing an internal voltage for an integrated circuit device, said system comprising:a test mode enable circuit adapted for producing a plurality of test signals; a reference'signal generator circuit, including: a voltage generating circuit for producing a voltage; a control circuit coupled to said voltage generating circuit and to said test mode enable circuit, wherein said control circuit is adapted for adjusting the voltage produced by the voltage generating circuit by receiving the plurality of test signals and providing corresponding enabling signals to the voltage generator circuit; wherein each test signal represents a value to which the voltage produced by said voltage generating circuit is to be adjusted; and wherein said control circuit includes a programmable circuit adapted to be programmed for causing said voltage generating circuit to maintain the voltage at the value to which the voltage has been adjusted, and wherein said voltage generating circuit, said test mode enable circuit, and said control circuit are fabricated in the integrated circuit device.