BUY HEF4585BP https://www.utsource.net/itm/p/1816087.html
4-bit magnitude comparator
Description: The HEF4585BP is a Quad 2-Input Exclusive-OR Gate from NXP Semiconductors. Features: - Low power consumption - High noise immunity - Low input current - High speed - High output current - Low input and output capacitance Applications: - Digital logic circuits - Data transmission - Signal processing - Pulse generation - Clock and timing circuits - Interface circuits - Security systems (For reference only)