The DM74F539PC is a dual 4-to-2 line multiplexer with 3-state outputs manufactured by National Semiconductor (now Texas Instruments). This device is used to select one of four data inputs and route it to one of two outputs, providing versatile data selection capabilities. The 'F' designation indicates that it belongs to the Fast TTL logic family, known for its high-speed performance.

Applications

• Data Selection
• Address Multiplexing
• Logic Function Generation
• Digital Routing

Features

• Dual 4-to-2 Line Multiplexer
• 3-State Outputs
• Fast TTL Logic Family
• High Speed Operation
• Enable Input for Output Control

Benefits

• Provides versatile data selection capabilities with two independent 4-to-2 multiplexers.
• Three-state outputs allow for easy connection to bus-oriented systems.
• Fast TTL logic family provides high-speed performance.
• Enable input allows for output control and expansion capabilities.

The DM74F539PC contains two independent 4-to-2 line multiplexers. Each multiplexer has four data inputs (I0-I3), two select inputs (S0, S1), an enable input (E), and two outputs (Y0, Y1). The select inputs determine which data input is routed to the corresponding output. When the enable input is low, the selected data input is passed to the output; when the enable input is high, the outputs are in a high-impedance state. The device operates from a standard 5V power supply. The Fast TTL technology ensures high-speed operation. The DM74F539PC is commonly used in data selection, address multiplexing, and logic function generation applications.