Manufacturer Part Number
MC74ACT139DR2G
Manufacturer
onsemi
Introduction
The MC74ACT139DR2G is a high-speed CMOS decoder/demultiplexer.
Product Features and Performance
High-speed operation
Compatible with TTL levels
Outputs can drive up to 24mA
Two independent 1-of-4 decoders
Demultiplexing capability
Multiple input enable for easy expansion
Ideal for memory chip select decoding
Product Advantages
Improved output drive capability
Low power consumption
Enhanced durability at high temperatures
Key Technical Parameters
Logic Type: Decoder/Demultiplexer
Circuits: 1 x 2:4
Independent Circuits: 2
Current - Output High, Low: 24mA, 24mA
Voltage Supply Source: Single Supply
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
Built with onsemi's high-quality standards
Compatibility
TTL logic signal level compatibility
Application Areas
Connecting devices within computing systems
Data routing
Memory chip select decoding
Industrial electronics
Communication systems
Product Lifecycle
Active status
Not nearing discontinuation
Availability of replacements or upgrades from onsemi
Several Key Reasons to Choose This Product
Excellent signal demultiplexing for complex digital systems
High output current for driving multiple devices
Efficient power usage suitable for battery-powered applications
Operational across a wide temperature range
Ready availability as an actively produced component
Reliable performance backed by onsemi's reputation
Convenient surface mount SOIC package for compact PCB design