System and method of eliminating on-board calibration resistor for on-die termination

A system for calibrating impedance of an input/output (I/O) buffer on a semiconductor die, comprising:

• the I/O buffer on the semiconductor die;
• a temperature sensor on the semiconductor die, wherein the temperature sensor is configured to acquire temperature information for calibrating the I/O buffer;
• a supply sensor on the semiconductor die, wherein the supply sensor is configured to acquire voltage information for calibrating the I/O buffer;
• wherein the I/O buffer comprises:
• a memory component coupled to the temperature sensor and the supply sensor, the memory component configured to store the acquired temperature information or the acquired voltage information;
• a logic component coupled to the memory component;
• and
• a driver with driver legs, wherein the driver is coupled to the logic component;
• wherein the logic component is configured to generate driver control signals representing an on/off configuration for the driver legs of the driver of the I/O buffer based at least in part on the acquired temperature information or the acquired voltage information stored in the memory component.