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SN74HC139N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
SN74HC139NTI187Yes

SN74HC139N** is a dual 2-line to 4-line decoder/demultiplexer manufactured by **Texas Instruments (TI)**.

The SN74HC139N is a dual 2-line to 4-line decoder/demultiplexer manufactured by Texas Instruments (TI).

Specifications:

  • Logic Type: Decoder/Demultiplexer
  • Number of Circuits: 2
  • Number of Input Lines: 2 (per decoder)
  • Number of Output Lines: 4 (per decoder)
  • Supply Voltage Range: 2V to 6V
  • High-Level Output Current: -5.2 mA
  • Low-Level Output Current: 5.2 mA
  • Propagation Delay Time: 15 ns (typical at 5V)
  • Operating Temperature Range: -40°C to +85°C
  • Package / Case: PDIP-16 (Plastic Dual In-Line Package)

Descriptions:

The SN74HC139N contains two independent 2-to-4 line decoders/demultiplexers. Each decoder accepts two binary-weighted inputs (A0, A1) and provides four mutually exclusive active-low outputs (Y0-Y3). The device features an enable input (E) that, when held high, disables all outputs.

Features:

  • Dual 2-to-4 Line Decoder/Demultiplexer
  • Active-Low Outputs
  • Wide Operating Voltage Range (2V to 6V)
  • Low Power Consumption
  • High Noise Immunity
  • Schmitt-Trigger Inputs for Improved Noise Rejection
  • Standard 16-Pin PDIP Package

This device is commonly used in address decoding, memory selection, and data routing applications.

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