Dual 4:1 multiplexer for harsh environments
The onsemi MM74HC153MX is a dual 4:1 multiplexer from the 74HC family, integrating two independent 4-line-to-1-line data selectors in a single package. Output drive capability is specified at 5.2 mA for both high and low states, adequate for driving CMOS inputs and short PCB traces.
Active and available — no LTB clock ticking
2 x 4:1 routing — what the circuit count means
The 2 x 4:1 configuration packs two separate multiplexers into one 16-pin SOIC footprint. Each section has its own output and enable, so a single device can handle two independent signal selection tasks — for example, selecting between four sensor inputs for two different ADC channels, or routing address/data lines in a memory bank. The independent circuits flag confirms that the two mux sections operate without cross-coupling, which matters when routing asynchronous signals.