Thanks to Texas Instruments, your circuit can return to normal functionality in case of processor failure with the TLV809K33DBVR microprocessor supervisory circuit. It has a typical reset threshold voltage of 2.93 V, with a minimum of 2.87 V and a maximum of 2.99 V. This device has a minimum operating supply voltage of 2 V and a maximum of 6 V. This part has a minimum operating temperature of -40 °C and a maximum of 85 °C.