Triple 3-input OR gate — what it is and where it fits
The Texas Instruments CD74HC4075PWR is a 74HC-series CMOS logic device containing three independent 3-input OR gates in a single 14-TSSOP package. Each gate takes three logic inputs and outputs their logical OR result. It's the kind of basic glue logic you reach for when a sensor bank, alarm chain, or status-word multiplexer needs a clean combinational combine — three separate OR functions on one IC, no wasted gates. Supply range runs from 2V to 6V, so it works alongside 3.3V MCUs, 5V PLC backplanes, or battery-powered 2V rails without a level translator. The full military temperature span of -55°C to 125°C means it's at home in engine-bay electronics, outdoor telecom cabinets, or downhole instrumentation where the ambient swings hard. Quiescent current maxes at 2 µA — negligible for power budgets, even on a loop-powered sensor board. Propagation delay is 17 ns at 6V with a 50 pF load.
Package and pinout — what the 14-TSSOP means on the board
The 14-TSSOP body measures 4.40 mm wide, 0.173" pitch. It is a surface-mount package.