It accepts a 3-bit binary input and asserts one of eight active-high outputs, or can be used as a demultiplexer by feeding data into an enable pin.
Rated for 2V to 6V single-supply operation, this part works directly with 3.3V and 5V logic families without level translation. The 7.8mA output high and low current per pin is enough to drive a few standard CMOS loads or a low-current LED through a resistor, but not a relay coil or high-fan-out bus without buffering.
Temperature grade and deployment environments
The 74HCS series typically offers Schmitt-trigger inputs for noise immunity, which helps in electrically noisy environments like motor drives or power converters.