Temperature sensor embedded in processor, method of operating the same, and devices including the same

An electronic system comprising:

• a power source configured to supply an operating voltage;
• a storage device configured to store data;
• a memory configured to store data and programs;
• input/output (I/O) ports configured to receive data transmitted to the electronic system or transmit data from the electronic system;
• and
• a system on chip comprising a processor and a temperature sensor embedded in the processor, the temperature sensor comprising:
• a reference circuit configured to receive a supply voltage provided from outside the system on chip and utilized for operation of the processor, and generate, using the supply voltage, first and second temperature information signals that vary according to a temperature of the processor, and first and second reference signals that are substantially constant relative to the temperature of the processor;
• and
• a digital temperature generator configured to receive the first and second temperature information signals and the first and second reference signals generated by the reference circuit, and generate a digital temperature information signal indicative of the temperature of the processor based on the first and second temperature information signals and the first and second reference signals.