74HC86 Quad 2-Input EXOR Gate IC (SMD Package)

An XOR gate's output goes high only when its two inputs disagree, which makes it the natural building block for parity checking, simple bit-comparison logic, or a basic adder's carry logic, jobs the AND and OR gates already in the catalog can't do on their own. The 74HC86 packs four of these independent XOR gates onto a single chip, and this SMD-package version is sized for a finished surface-mount PCB design.