Interfacing (converting, connecting) a 2.5V LVCMOS signal to 1V LVCMOS can be accomplished with parallel or series termination. The signal DC offset level is re-bias through AC coupling so that the signal swing center at the threshold level. The receiver input threshold level is 1.65v in this example. The driver is assumed to be capable of driving 25mA loading. See the solutions below. For other questions not addressed by the Knowledge Base, please submit a technical support request.