Abstract: A power-down signal generating circuit receives first and second supply voltages, where the first supply voltage is less than the second supply voltage, and generates a power-down signal. The power-down signal generating circuit includes a driving amplifier, first through third transistors, and an amplification circuit. When the first supply voltage is deactivated, the power-down signal is activated. The driving amplifier prevents the first through third transistors from being enabled simultaneously, which reduces static leakage current.

Abstract: A power-down signal generating circuit receives first and second supply voltages, where the first supply voltage is less than the second supply voltage, and generates a power-down signal. The power-down signal generating circuit includes a driving amplifier, first through third transistors, and an amplification circuit. When the first supply voltage is deactivated, the power-down signal is activated. The driving amplifier prevents the first through third transistors from being enabled simultaneously, which reduces static leakage current.

Abstract: Embodiments of a differential driver circuit and a method for controlling a differential driver circuit are described. Embodiments of a differential driver circuit may include a current steering circuit configured to determine a current direction through differential output terminals of the differential driver circuit, two resistors connected between the differential output terminals of the differential driver circuit and first and second semiconductor circuits connected to a point between the two resistors. The first and second semiconductor circuits are of different types. The source terminals of the first and second semiconductor circuits are connected to the point between the two resistors.