Manufacturer Part Number
SN74HCT139DR
Manufacturer
Texas Instruments
Introduction
The SN74HCT139DR is a dual 2-line to 4-line decoder/demultiplexer, part of Texas Instruments’ 74HCT series, designed for logic signal switching, decoding, and multiplexing applications.
Product Features and Performance
Dual 2-line to 4-line decoder/demultiplexer
Balanced propagation delays and output transition times
Offers hardware troubleshooting and testing ease through logic-level compatibility
Product Advantages
High noise immunity characteristic of CMOS devices
Capable of driving 10 LSTTL loads
Contributes to a reduction in system power consumption
Key Technical Parameters
Circuit Configuration: 1 x 2:4
Independent Circuits: 2
Current Output High, Low: 4mA each
Voltage Supply Source: Single Supply
Operating Voltage: 4.5V to 5.5V
Operating Temperature: -40°C to 85°C
Mounting Type: Surface Mount
Quality and Safety Features
ESD protection integrated to enhance circuit safety
Compatibility
Compatible with TTL outputs
Application Areas
Ideal for high-speed memory chip select address decoding
Can be used in data transmission systems
Product Lifecycle
Current Status: Active
No immediate discontinuation, replacements or upgrades announced
Several Key Reasons to Choose This Product
Robust noise immunity for reliable operation in electronically noisy environments
Low output current for reduced power consumption
Wide operating temperature suitable for various industrial applications
Available in Surface Mount package for compact circuit board designs