SY55851A is a highly flexible, universal logic gate capable of up to 3.0GHz operation. This AnyGate® differential logic device will produce all possible logic functions of two Boolean variables. It can be configured as any of the following gates: AND, NAND, OR, NOR, XOR, XNOR, DELAY, NEGATION (NOT). The SY55851A can also function as a 2-input multiplexer. The SY55851A has an output stage optimized for 50Ω loads. The differential inputs are normally terminated with a single resistor (100Ω) between the true and complement pins.