SN74HC138DR SMD IC Decoder 74138 SOP16 SN74HC138DR

Product Overview:

A surface-mount, 3-line to 8-line decoder and demultiplexer integrated circuit designed for high-performance memory-decoding and data-routing applications. It efficiently decodes three binary select inputs into one of eight active-low outputs, minimizing system decoding delays in high-speed memory and communication systems.

Core Specifications:

Manufacturer: Texas Instruments

Package Type: Available in various packages, including SOP (NS), SOIC (D), PDIP (N), and TSSOP (PW)

Function: 3-Line to 8-Line Decoder / Demultiplexer

Input Channels: 3 Binary Select Inputs (A, B, C) and 3 Cascading Enable Inputs 

Control Interface: Direct Logic Input

Features:

• Optimized for high-speed memory decoders and data transmission systems

• Wide operating supply voltage range: 2 V to 6 V

• High drive capability: Outputs can drive up to 10 low-power Schottky TTL (LSTTL) loads

• Low power consumption with a maximum quiescent current ($I_{CC}$) of 80 µA

• High-speed performance: Typical propagation delay ($t_{pd}$) of 15 ns

• $\pm$4-mA output drive at 5 V

• Low input current requirement: 1 µA maximum

• Active-low outputs where the selected output transitions to a low logic state

• Features three separate enable inputs to easily facilitate cascading or data reception without external logic gates

Applications:

• Light-emitting diode (LED) displays and indicators

• Network servers and computing infrastructure

• Major household appliances / large home appliances

• Electrical power infrastructure

• Building automation systems

• Factory automation and industrial control equipment