74ACT253SJ

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74ACT253SJ is a dual 4-input multiplexer with 3-STATE outputs. It belongs to the ACT logic series, featuring TTL-compatible inputs and CMOS construction. The device operates within a supply voltage range of 4.5V to 5.5V. It utilizes a 16-Lead Small Outline Integrated Circuit (SOIC) package, specifically JEDEC MS-012 standard with a 0.150-inch narrow profile. The component supports an operating temperature range from -40°C to +85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual 4-input multiplexing capability with common select inputs
• 3-STATE outputs for direct bus-oriented system interfacing
• TTL-compatible input levels for broad compatibility

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented data routing systems
• Digital signal selection circuits
• Multiplexed data acquisition interfaces

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix SJ against the manufacturer's official datasheet to confirm the exact package dimensions and tape-and-reel specifications. Ensure the procurement source provides documentation confirming RoHS compliance status as defined in the current product specification. Cross-reference the ordering information section for any alternative package options if the SOIC form factor is unsuitable for the target application.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a dual 4-to-1 multiplexer with high-speed switching and 3-STATE output control is required. The ACT series offers improved speed over standard AC devices while maintaining low power consumption. Verify that the 4.5V to 5.5V supply voltage aligns with the system design constraints and that the SOIC package fits the available PCB footprint.

Signal Switches, Multiplexers, Decoders Part Context

This part is part of the 74AC/ACT family of logic integrated circuits manufactured by Fairchild Semiconductor. It serves as a functional equivalent to other industry-standard dual 4-input multiplexers but is distinguished by its specific ACT performance characteristics and packaging. The device is designed for general-purpose digital logic applications requiring reliable data selection and bus management capabilities.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Consult the manufacturer's cross-reference guide or official replacement matrix for verified substitute part numbers. Do not assume pin-compatibility with other multiplexer families without verifying the specific electrical and mechanical parameters against the original datasheet.