ProjectsPricingInsights

74HC138B AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

74HC138B product

74HC138B

Decoders

DecoderDemultiplexerCMOSLogic

The 74HC138B is a standard 3-to-8 line decoder/demultiplexer, widely used for memory address decoding and data routing in digital systems.

Best for

  • Memory address decoding
  • Data demultiplexing
  • General logic expansion

Avoid if

  • High-voltage applications exceeding 5V
  • Applications requiring active-HIGH outputs

Check before use

  • Enable input logic levels
  • Timing constraints for high-speed systems

Key specifications

Supply Voltage
3.0V - 5.0V
Propagation Delay
12 ns
Package
SOP-16

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Industrial ControlConsumer Electronics

Datasheet

eaf028603ffcd2e5d917571ff22756af_2110210930_Shenzhen-Fuman-Elec-74HC138B_C2906780.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 74HC138B: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is a high-speed CMOS 3-to-8 line decoder/demultiplexer that converts a 3-bit binary input into one of eight active-LOW outputs.