Technology related to calibrating synchronization of a data signal to a forwarded clock signal is described. A circuit includes a receiver circuit and a clock-to-data synchronization circuit. The receiver circuit receives a data signal and includes two inverters and two resistors. The clock-to-data synchronization circuit receives the data signal and the clock signal and determines an indication of synchronization between the data and clock signals. The clock-to-data synchronization circuit adjusts, using the indication, a parameter of the receiver circuit to synchronize the data signal and the clock signal.