Patent ID: 6285233
Filing Date: 2001-09-04
Classification: H03K

Abstract:
A level shifter electronic device with very low power consumption, the electronic device comprising:a first power supply voltage, a second power supply voltage, and a reference voltage, the first power supply voltage being lower than the second power supply voltage;a differential shifting circuit coupled to the first and second power supply voltages and the reference voltage, the differential shifting circuit having an input node with a voltage depending on the first power supply voltage and having an intermediate node with a voltage depending on the second power supply voltage and an output terminal having an output voltage depending on the voltage at the intermediate node;a pull-down component coupled between the intermediate node and the reference voltage and having a control node; anda monitoring circuit having an input coupled to the first power supply voltage and an output coupled to the control node of the pull-down component, the monitoring circuit being structured to activate the pull-down component in response to detecting that the first power supply voltage is inactive.