A 74HC138N 3-to-8 Line Decoder / Demultiplexer is a high-speed CMOS logic Integrated Circuit (IC) designed for high-performance memory address decoding and data routing applications. Encapsulated in a standard 16-pin Dual In-line Package (DIP-16), it decodes three binary select inputs into eight mutually exclusive active-LOW outputs . Printed clearly with part number "74HC107N" / "74HC138N" (Philips branding), it features three enable inputs and one active-HIGH —which simplify cascading to create larger decoders without requiring external logic gates.

This product is featured by Famephase Electronic Accessories as an essential digital logic component for memory address decoding, digital demultiplexing, chip-select line generation, and IO port expansion.