The TC74VHC139F/FN/FT is a high‑speed CMOS dual 2‑to‑4 line decoder/demultiplexer. It offers low power dissipation, wide operating voltage range and high noise immunity, making it suitable for interfacing 5 V to 3 V systems and battery‑back‑up applications.
The document provides absolute maximum ratings, recommended operating conditions, detailed electrical characteristics, equivalent input circuit, and mechanical dimensions for the SOP‑16, SOL‑16 and TSSOP‑16 packages.