Integrated circuit device with on-board calibration of signal generator circuits, and related methods

A system, comprising:

• a plurality of phase or delay lock loop (P/DLL) circuits formed in an integrated circuit (IC) device package, and comprising a plurality of circuit sections, at least one of the circuit sections responsive to digital first calibration values to alter at least one periodic output signal from the P/DLL circuits;
• a nonvolatile memory (NVM) circuit formed in the IC device package and configured to store the calibration values;
• a processing circuit formed in the IC device package, the processing circuit configured to generate the first calibration values in response to target values and output values from the at least one of the P/DLL circuits, and to store the first calibration values in the NVM circuit;
• an interface formed in the IC device package and configured to receive commands for controlling the generation of signals from P/DLL circuits;
• and
• a plurality of signal outputs, each providing a different periodic output signal from a corresponding P/DLL circuit.

A method, comprising:

• providing output values from at least one circuit section of a phase or delay lock loop (P/DLL) circuit formed in an integrated circuit (IC) package;
• generating calibration values with a processing circuit by comparing the output values from the P/DLL circuit to target values, the processing circuit being formed in the same IC package;
• applying the calibration values to vary a periodic output signal generated by the P/DLL circuit;
• and
• storing the calibration values in a nonvolatile memory (NVM) circuit formed in the same IC package.