74AC253SC

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74AC253SC is a dual 4-input multiplexer with 3-STATE outputs, belonging to the 74AC logic series. It features a 16-Lead Small Outline Integrated Circuit (SOIC) package adhering to JEDEC MS-012 standards with a 0.150-inch narrow width. The device operates on a single power supply ranging from 2V to 6V and supports an operating temperature range of -40°C to +85°C. Electrical characteristics include non-inverting outputs capable of sourcing and sinking 24mA. The AC253 variant specifically offers reduced ICC and IOZ levels compared to earlier generations.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual 4-input multiplexing capability allowing selection of two bits of data from four sources using common select inputs.
• Non-inverting 3-STATE outputs that can be individually switched to a high impedance state via Output Enable inputs for bus-oriented interfacing.
• Reduced quiescent current and output impedance compared to previous technology generations within the same logic family.

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented systems requiring direct interface capabilities through high-impedance states.
• Data routing applications utilizing common select inputs for multiple data sources.
• Digital signal processing circuits requiring non-inverting multiplexing functions.

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity and datasheet alignment when sourcing this part. Confirm package dimensions match the 16-SOIC JEDEC MS-012 specification. Ensure voltage supply constraints between 2V and 6V are strictly maintained during integration. Check for RoHS compliance status relevant to specific manufacturing batches.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for designs requiring dual 4:1 multiplexing with tri-state output control. Verify compatibility with system voltage levels within the 2V to 6V operational range. Consider the 24mA drive capability for load requirements. Ensure the SOIC-16 footprint fits the target PCB layout constraints.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the 74AC logic family, characterized by high-speed CMOS technology. It serves as a functional equivalent to other dual 4-input multiplexers in the industry standard logic lineup. The device provides a compact solution for data selection tasks in digital electronics, offering improved performance metrics over older bipolar counterparts.

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 pinout compatibility and electrical specifications before substitution.