What this 74HC multiplexer is and where it fits
The Texas Instruments SN74HC158DT is a 74HC-series CMOS multiplexer with a 4 x 2:1 circuit in a 16-SOIC surface-mount package. It operates from 2V to 6V supply and -40°C to 85°C temperature range.
Ratings that decide the fit
The 4 x 2:1 circuit routes four bits at once. Supply range is 2V to 6V. Output drive is 7.8 mA per pin. Package is 16-SOIC.
Lifecycle and sourcing reality
TI keeps the 74HC family running for industrial and legacy-support customers. For a BOM line, this means no supply risk from obsolescence; you can qualify it for new designs without worrying about a sudden discontinuation.
