Patent ID: 8400184

Claim:
A device comprising: first and second power supply lines; first, second, third and fourth nodes; a first transistor of a first conductivity type coupled between the first power supply line and the first node and having a control electrode coupled to the second node; a second transistor of the first conductivity type coupled between the first power supply line and the second node and having a control electrode coupled to the first node; a third transistor of a second conductivity type coupled between the first node and the second power supply line and having a control electrode; a fourth transistor of the second conductivity type coupled between the second node and the second power supply line and having a control electrode; a first current limiting element coupled between the first power supply line and the third node; a second current limiting element coupled between the first power supply line and the fourth node; a fifth transistor of the second conductivity type coupled between the first and third nodes and having a control electrode coupled to the control electrode of the fourth transistor; and a sixth transistor of the second conductivity type coupled between the second and fourth nodes and having a control electrode coupled to the control electrode of the third transistor, wherein an input signal is supplied to the control electrode of the third transitor, an inverted signal of the input signal is supplied to the control electrode of the fourth transitor, and an output signal is derived from at least one of the first and second nodes.