Patent ID: 6204702
Filing Date: 2001-03-20
Classification: H03K

Abstract:
In an integrated circuit, circuitry coupled to first and second voltage lines respectively supplied with current from first and second D.C. sources, the first D.C. source being in one of an off-state and an on-state, said circuitry comprising:a first circuit portion coupled to the first voltage line;a second circuit portion coupled to the second voltage line;means for switching an activating current according to the current from the first D.C. source, said means coupled to said first and second voltage lines; anda third circuit portion coupled, via said means for switching, to receive the activating current when the first D.C. source is in the on-state and decoupled from the second voltage line when the first D.C. source is in the on-state, wherein said first circuit portion includes analog circuits, and wherein both said second circuit portion and said third circuit portion includes logic circuits.