Patent ID: 6768649
Filing Date: 2004-07-27
Classification: H01L

Abstract:
A method of using, in a circuit system which is designed to operate with a first integrated-circuit device operating at a first supply voltage, a second integrated-circuit device functionally equivalent to the first integrated-circuit device and comprising at least a portion operating at a second supply voltage lower than the first supply voltage, comprising:providing, in the circuit system, a plurality of areas for connection to corresponding terminals of the first integrated-circuit device or of the second integrated-circuit device, two of these areas, which correspond to the supply terminals of one or of the other of the integrated-circuit devices, being connected to the first voltage supply, and a third area, which corresponds to another terminal of one or of the other of the integrated-circuited devices, being connected to circuit means of the circuit system, forming, in the first integrated-circuit device, a direct electrical connection between the said other terminal and one of the terminals connected to the first voltage supply, and forming, in the second integrated-circuit device, a voltage-reducer circuit with regulator the output of which is connected to the said other terminal.