Methods and apparatus to determine a frequency of a signal

A device comprising:

• comparison circuitry configurable to determine frequencies based on clock count ranges and a clock count value, the clock count ranges each having a range of count values corresponding to respective frequencies, the frequencies corresponding to the clock count ranges that include the clock count value;
• comparator circuitry configurable to generate a temperature indication based on a comparison of a temperature voltage to a reference voltage;
• and
• overlap determination circuitry configurable to select a frequency of the frequencies based on the temperature indication.

A method comprising:

• counting a number of cycles of a first clock signal for a number of cycles of a second clock signal;
• comparing the number of cycles of the first clock signal to a plurality of clock count ranges;
• determining a set of frequencies of the clock count ranges that includes the number of cycles of the first clock signal;
• and
• selecting a first frequency of the set of frequencies based on a temperature of a device.