The MC33161DR2G Supervisory Circuits Universal Voltage Monitor is a device manufactured by ON Semiconductor that provides voltage monitoring functions and reset signaling. The device provides voltage monitoring options, including voltage thresholds monitoring from 1.7 V to 5.5 V. In addition to voltage levels, the device has an integrated current limiter to protect against fault conditions. It also has a power-on reset (POR) output signal that is used to indicate when the device's monitored voltage has moved within the specified voltage window. The device also has an open drain output with optional push-pull and open collector options available, allowing the device to be used with various logic configurations. Finally, the MC33161DR2G has a maximum supply current of 1.6 mA, allowing it to be used in low-power applications.