The BU4030B / F and BU4070B / F are exclusive OR gates. Four circuits are contained on a single chip. An inverter-based buffer is added to the gate output for an enhanced I / O voltage characteristic, and the load capacitance has been increased to minimize fluctuation in the propagation time. In addition, these products feature low power consumption and a high noise margin. These can also be used in digital comparators and parity circuit applications.