74ACT253SC

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74ACT253SC is a dual 4-input multiplexer featuring 3-STATE outputs, housed in a 16-lead Small Outline Integrated Circuit (SOIC) package. It selects two bits of data from four sources using common select inputs. The device supports bus-oriented systems by allowing outputs to be individually switched to a high impedance state via Output Enable inputs. It operates within the 74ACT logic family, providing TTL-compatible inputs and non-inverting outputs capable of sourcing and sinking significant current for direct interfacing.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual 4-input multiplexing capability with common select inputs
• Non-inverting 3-STATE outputs for bus-oriented applications
• TTL-compatible input levels for broad compatibility
• Individual output enable control for high impedance switching

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system data routing
• Multiplexing multiple data sources to a single destination
• Digital signal selection in logic circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'SC' corresponds to the 16-lead SOIC package configuration as documented in official ordering information. Confirm RoHS compliance status through current manufacturer documentation, as environmental certifications may vary by production batch. Ensure the component matches the original Fairchild Semiconductor specifications before integration into designs requiring precise pinout and electrical characteristics.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a dual 4-to-1 multiplexer with tri-state output control is required. It is suitable for applications needing TTL-compatible inputs and the ability to isolate outputs on a shared bus. Consider the 16-lead SOIC package constraints for PCB layout. Verify that the operating voltage range and output drive capabilities meet the specific circuit requirements compared to other logic families.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AC/ACT series of logic devices, specifically designed for high-speed digital applications. The 74ACT253 variant offers improved performance over standard 74LS counterparts while maintaining pin compatibility. It is manufactured by Fairchild Semiconductor, now part of ON Semiconductor, and is widely used in general-purpose digital logic systems requiring reliable data selection and bus management.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Compatible substitutes include the 74AC253SC and other variants within the 74AC/ACT253 family. These alternatives share identical logical functions and pinouts but may differ in speed or power consumption characteristics. Verify package type and electrical parameters against the original specification to ensure functional equivalence in the target application.