Patent ID: 7707445

Claim:
An integrated circuit comprising: a first circuit unit, which is put into a power-saving mode by a control apparatus and into a predetermined initial state when changing from the power-saving mode to a regular operating state, and is configured to operate with a source potential; and a second circuit unit, which is put into a power-saving mode by the control apparatus, during which the second circuit unit buffer-stores data and/or instructions adopted immediately prior to the power-saving state before changing to the power-saving mode, with the second circuit unit resuming and providing the data and/or instructions when changing from the power-saving mode to the regular operating state, wherein the second circuit unit has an input connection to which the source potential is applied in order to change to the power-saving mode and during the power-saving mode, and to which a reference potential is applied in order to change to the operating state and during the operating state.