Keep your circuit secure if your main processor goes out by using this MCP120-485DI/TO microprocessor supervisory circuit from Microchip Technology. This part has an operating temperature range of -40 °C to 85 °C. This device has a minimum operating supply voltage of 1 V and a maximum of 5.5 V. It has a typical reset threshold voltage of 4.725 V, with a minimum of 4.6 V and a maximum of 4.85 V.