74HCT688 - 8Bit magnitude comparator TSSOP2 20Pin
If you are looking for a more complex ALU, the identity comparator logic comparator from Semiconductors can compare two or more bitwise operators, allowing for different operations to be performed. This logic comparator has an operating temperature range of -40 °C to 125 °C. This component will be shipped in tape and reel packaging to allow for effective mounting and safe delivery. This inverting device has a typical operating supply voltage of 5 V. Its minimum operating supply voltage of 4.5 V, while its maximum is 5.5 V.