Dual 4:1 multiplexer for wide-voltage logic
The CD74AC153M is a dual 4:1 multiplexer from Texas Instruments' 74AC series, designed to select one of four data inputs per channel based on a common select bus. Each of the two multiplexer sections independently routes one of four input lines to its output, controlled by the shared address lines.
The wide operating window also provides margin in high-reliability designs that must survive thermal cycling without parametric drift. Board layout is straightforward — the 1.27mm pin pitch allows two-layer routing without micro-vias, and the package is compatible with reflow profiles typical for lead-free assembly.
Active lifecycle and compliance
For designs requiring a known-good second source, the 74AC family has multiple pin-compatible suppliers. The CD74AC153M's 16-SOIC footprint and 1.5V-5.5V supply range are industry-standard, so cross-referencing to an alternate vendor's 74AC153 in the same package is straightforward — no board spin needed.