Quad XOR gate for wide-voltage logic
The Texas Instruments CD4030BE packs four independent 2-input XOR (Exclusive OR) gates in a single 14-pin DIP, operating across a 3V to 18V supply range. With a quiescent current of just 1 µA max, this 4000B-series CMOS gate draws negligible standby power — suited for battery-backed or always-on logic sections where the supply rail floats above 3V.
The 14-DIP (0.300", 7.62mm) through-hole package suits prototyping, rework-friendly designs, or boards where vibration resistance favours a soldered lead over a surface-mount joint.