74AC253SCX

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74AC253SCX is a dual 4-input multiplexer with 3-STATE outputs, belonging to the 74AC logic family. It operates on a single power supply ranging from 2V to 6V and features a 16-SOIC surface-mount package. The device provides non-inverting outputs capable of sourcing and sinking 24mA each. It includes common select inputs for data selection and individual Output Enable (OE) inputs to switch outputs to a high-impedance state.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual 4-input multiplexing capability with common select lines
• 3-STATE outputs allowing direct interface with bus-oriented systems
• Individual output enable control for high-impedance switching

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system data routing
• Data selection from multiple sources
• Multiplexing in digital logic circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status as historical documentation may vary. Check for moisture sensitivity level requirements during storage and handling. Ensure the 16-SOIC package dimensions match PCB footprint specifications before integration into designs.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent 4-to-1 multiplexing is required within a compact surface-mount form factor. Consider the 2V to 6V operating range for compatibility with various logic levels. Evaluate the 24mA drive capability against load requirements. Verify that the 3-STATE output functionality aligns with bus architecture needs.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AC series of high-speed CMOS logic devices. The 74AC253 variant specifically addresses applications requiring dual multiplexing functions. It shares pinout compatibility with other 74AC multiplexer families while offering improved speed over older 74HC counterparts. The SCX suffix indicates the specific tape-and-reel packaging configuration.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include MC74AC253DR2G from onsemi. Similar alternatives are available from Texas Instruments such as CD74AC253M and CD74AC253M96. Verify pin compatibility and electrical characteristics before substitution.