onsemi

74F257ASCX

74F257ASCX Description

The 74F257ASCX is a high-performance multiplexer IC from the 74F series, manufactured by onsemi. This logic IC chip is designed to provide efficient signal routing and selection in various electronic systems. It features a 4 x 2:1 multiplexer circuit, allowing for the selection of one of four input signals to be routed to a single output. The device operates within a voltage supply range of 4.5V to 5.5V and is capable of handling output currents of up to 3mA for high levels and 24mA for low levels. The 74F257ASCX is housed in a 16SOIC package and is available in a tape and reel format, making it suitable for surface mount applications.

74F257ASCX Features

• Operating Temperature Range: The 74F257ASCX operates reliably within a temperature range of 0°C to 70°C, making it suitable for a wide range of ambient conditions.
• Single Supply Voltage: The device operates from a single supply voltage source, simplifying power management and reducing the complexity of the power supply circuitry.
• Independent Circuits: It features one independent 4 x 2:1 multiplexer circuit, providing efficient signal selection and routing.
• Output Current Capability: With output currents of 3mA for high levels and 24mA for low levels, the 74F257ASCX can drive a variety of loads effectively.
• Moisture Sensitivity Level (MSL): The device has an MSL rating of 1 (unlimited), indicating it is highly resistant to moisture, which enhances its reliability in humid environments.
• Compliance: The 74F257ASCX is REACH unaffected, ensuring compliance with environmental and safety regulations.
• Obsolete Status: While the product is marked as obsolete, it remains a viable option for legacy systems and applications where its specific features are required.

74F257ASCX Applications

The 74F257ASCX is ideal for applications requiring efficient signal selection and routing. Its high performance and reliability make it suitable for:

• Data Acquisition Systems: Where multiple input signals need to be selected and routed to a single processing unit.
• Communication Systems: For signal switching and routing in telecommunication equipment.
• Industrial Control Systems: Where precise control and selection of signals are necessary for efficient operation.
• Automotive Electronics: For managing various sensor inputs and routing them to control units.
• Consumer Electronics: In devices where multiple signal sources need to be managed, such as in audio and video systems.

Conclusion of 74F257ASCX

The 74F257ASCX is a robust and versatile multiplexer IC that offers reliable performance in a compact surface mount package. Its ability to operate within a wide temperature range and handle significant output currents makes it suitable for a variety of demanding applications. While marked as obsolete, the 74F257ASCX remains a valuable component for maintaining legacy systems and for specific applications where its unique features are essential. Its compliance with environmental regulations and high moisture sensitivity level further enhance its appeal for use in diverse environments.