The 74F251PC is an 8-input multiplexer from Fairchild/ON Semiconductor, belonging to the 74F (Fast) TTL logic family. This device selects one of eight data sources based on a 3-bit address input. The selected data is then routed to the output. It's characterized by its high speed and is commonly used in data selection and routing applications.

Applications

• Data selection
• Address multiplexing
• Parallel-to-serial conversion
• Logic function generation
• Implementing custom logic circuits

Features

• 8-to-1 multiplexing: Selects one of eight data inputs.
• High-speed operation: Characteristic of the 74F family.
• 3-STATE output: Allows for connection to a bus without loading it when disabled.
• Enable input: Allows for output control.
• Low power consumption: Offers a balance between speed and power.

Benefits

• Reduced component count: Integrates the functionality of multiple discrete gates.
• Improved system performance: High-speed operation reduces delays.
• Increased system flexibility: 3-STATE outputs allow multiple devices to share a bus.
• Simplified system design: Reduces the complexity of data selection.
• Efficient data routing: Effectively manages multiple data sources.

Additional Details

The 74F251PC is packaged in a DIP (Dual In-line Package). It has three address inputs (A, B, C) that determine which of the eight data inputs (D0-D7) is selected. The selected data is then routed to the output (Y). An enable input (E) controls the output. When E is high, the output is in a high-impedance state (3-STATE). When E is low, the output is enabled. It typically operates from a 5V power supply. The operating temperature range is typically 0°C to +70°C.