74F257APC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74F257APC is a quad 2-input multiplexer with 3-STATE outputs housed in a 16-Lead Plastic Dual-In-Line Package (PDIP). 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 switch to a high impedance state when the Output Enable input is HIGH, allowing direct interfacing with bus-oriented systems. It operates within a supply voltage range of +4.5V to +5.5V and an ambient temperature range of 0°C to +70°C.

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
• Input clamp diodes designed to limit high-speed termination effects

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system data routing
• Multiplexer expansion by tying outputs together
• Logic implementation of a 4-pole, 2-position switch

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm package type matches the 16-Lead PDIP specification. Review datasheet electrical characteristics for operating conditions. Ensure compliance with environmental standards relevant to the application. Check for any product change notifications affecting specifications.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for applications requiring quad 2-input multiplexing with 3-STATE output capability. Consider the PDIP package for through-hole mounting requirements. Evaluate propagation delay and power supply current against system timing and power constraints. Verify compatibility with existing logic families and voltage levels.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74F series of logic integrated circuits, specifically implementing multiplexer functions. It is manufactured under the Fairchild Semiconductor brand, which is now part of onsemi. The device provides standard TTL-compatible logic levels and is designed for general-purpose digital signal switching applications.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for pin-to-pin compatible alternatives within the same logic family. Verify electrical parameters such as propagation delay and output drive strength match original requirements. Ensure package dimensions are identical for board replacement.