Decoders/Demultiplexers Manuals

Texas Instruments CD54/74AC138, CD54/74ACT138, CD74AC238, CD74ACT238 Datasheet

The CD54/74AC138, CD54/74ACT138, CD74AC238, and CD74ACT238 are 3‑to‑8 line decoders/demultiplexers built with advanced CMOS logic. They feature three binary select inputs and active‑low/high enable pins for easy cascading. The devices support a wide supply voltage range and provide high‑speed operation with low power consumption.

Key specifications include a typical propagation delay of 5 ns, ESD protection exceeding 2 kV (MIL‑STD‑883), and operation over a temperature range of –55 °C to 125 °C. Available in 16‑lead CERDIP, PDIP, and SOIC packages, these parts are suitable for a variety of digital logic applications.

Covers: Features · Description · Ordering Information · Pinout · Absolute Maximum Ratings · DC Electrical Specifications