Dual 4:1 multiplexer for 2V to 6V logic rails
The Texas Instruments SN74HC153D is a dual 4:1 multiplexer from the 74HC family, in a 16-SOIC package. It routes one of four data inputs to a single output per channel, with independent select lines for each of the two multiplexers. The 2V to 6V supply range lets it work on both 3.3V and 5V logic buses without a level translator, and the -40°C to 85°C temperature grade suits industrial control, motor-drive feedback, and outdoor telecom panels where the cabinet sees thermal cycling.
Two independent 4:1 multiplexers in one 16-SOIC package means you can route two separate 4-bit data streams or address two sets of sensor inputs without a second chip. The single-supply operation simplifies the power rail — no negative supply needed. Output drive is rated 7.8 mA source and sink, enough for standard CMOS loads but not for driving a long backplane trace directly; buffer if the line runs past a few inches.