Using this MCP121-450E/TO microprocessor supervisory circuit, developed by Microchip Technology, easily have another processor take control in case the original fails. This part has a minimum operating temperature of -40 °C and a maximum of 125 °C. It has a typical reset threshold voltage of 4.38 V, with a minimum of 4.314 V and a maximum of 4.446 V. This device has a minimum operating supply voltage of 1 V and a maximum of 5.5 V.