Aspects of a method and system for signal generation via a temperature sensing crystal integrated circuit are provided. In this regard, a temperature sensing crystal integrated circuit (TSCIC) comprising a memory and a crystal or crystal oscillator may generate a signal indicative of a measured temperature. The generated signal and data stored in the memory may be utilized to configure one or more circuits communicatively coupled to the TSCIC. The data stored in the memory may characterize behavior of the TSCIC as a function of temperature and/or time. The data characterizing the behavior of the TSCIC may indicate variations in frequency of the crystal or crystal oscillator as a function of temperature and/or time. The data characterizing the behavior of the TSCIC may comprise one or both of a frequency value and a frequency correction value.