The 74ACT139MTC is a dual 2-to-4 line decoder/demultiplexer manufactured by Fairchild Semiconductor (now ON Semiconductor). This device accepts two binary address inputs and enables one of four outputs based on those inputs. It belongs to the 74ACT family, offering advanced CMOS technology for high-speed performance with low power consumption.

Applications

• Memory address decoding
• Data routing
• Chip selection
• Peripheral selection
• Industrial control systems

Features

• Dual 2-to-4 line decoder/demultiplexer
• High-speed operation
• Low power consumption
• Enables two independent decoder/demultiplexer functions
• Inverted outputs

Benefits

• Simplified address decoding logic
• Efficient data routing
• Reduced component count
• High-performance operation

Specifications

The 74ACT139MTC operates from a supply voltage of 4.5V to 5.5V. The outputs are active-low, meaning the selected output goes low while the other outputs remain high. The device is available in a 16-pin SOIC (Small Outline Integrated Circuit) package. The operating temperature range is typically -40°C to +85°C. Refer to the Fairchild/ON Semiconductor datasheet for detailed timing characteristics and electrical specifications. The '139 is particularly useful for enabling one of several devices based on a binary address, streamlining digital circuit designs.