Integrated circuit voltage supply via pad e.g. for microprocessors and microcontrollers

摘要

The invention relates to a circuit configuration for supplying power to an integrated circuit via a pad, whereby the pad is connected to the input of a Schmitt trigger on the integrated circuit and is provided for configuring the integrated circuit, whereby the integrated circuit is supplied with a multitude of supply voltages. According to the invention, the pad is connected to each supply voltage via a switch and the switches are switched on or off by a control circuit which is controlled by at least one chip-internal control signal.