74F257ASJ

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74F257ASJ is a quad 2-input multiplexer with 3-STATE outputs housed in a 16-Lead Small Outline Package (SOP). It selects four bits of data from two sources using a common data select input, presenting the selected data in true form. The device features non-inverting outputs that can be switched to a high impedance state via an active LOW Output Enable input, allowing direct interface with bus-oriented systems.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 2-input multiplexer architecture with common data select control
• Non-inverting 3-STATE outputs for bus-oriented system interfacing
• Multiplexer expansion capability by tying outputs together
• Input clamp diodes limit high-speed termination effects

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system data selection
• Multiplexer expansion configurations
• High-speed signal routing applications

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm package dimensions match the 16-Lead SOP specification. Ensure design accounts for 3-STATE output enable timing to prevent overlap currents when devices are tied together. Validate operating conditions against recommended supply voltage and temperature ranges.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for designs requiring quad 2-input multiplexing with tri-state output control. Consider the 16-Lead SOP package for surface mount assembly. Evaluate propagation delay specifications relative to system clock speeds. Verify compatibility with existing logic families regarding voltage levels and current drive requirements.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74F series of high-speed logic components. It implements a 4-pole, 2-position switch function controlled by logic levels supplied to the Select input. The device is manufactured under Fairchild Semiconductor standards, now part of onsemi, ensuring compliance with established logic family electrical characteristics.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Public confirmed substitute part numbers: SN74F257NSR Texas Instruments.