74ACT157SJX

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74ACT157SJX is a high-speed CMOS quad multiplexer belonging to the 74ACT series. It integrates four independent 2-line-to-1-line data selectors within a single package, featuring true outputs and TTL-compatible inputs. The device utilizes a 16-pin Small Outline Integrated Circuit (SOIC) surface-mount package with a standard 0.150-inch width. Designed for low-power dissipation applications, it operates reliably across a voltage range of 4.5V to 5.5V and supports an industrial temperature range from -40°C to 85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates four independent 2-input multiplexers in a compact surface-mount package
• Features TTL-compatible inputs for direct interfacing with standard logic families
• Provides true output signals without inversion

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital communication systems
• Address decoding circuits
• Bus-oriented signal selection

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'SJX' against official manufacturer documentation to confirm exact packaging specifications and lead times. Ensure compatibility with existing PCB footprints and soldering profiles. Confirm RoHS compliance status and environmental certifications required for the target application before finalizing procurement orders.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when multiple independent 2-to-1 data paths are required in a space-constrained design. The ACT series offers superior speed compared to standard AC logic while maintaining low power consumption. Verify that the input voltage levels match the system's logic thresholds and that the SOIC package dimensions fit the available board real estate.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the widely adopted 74ACT family of logic integrated circuits, which bridges the performance gap between older TTL technologies and modern CMOS standards. The 74ACT157 variant specifically addresses applications requiring parallel data selection. As a legacy Fairchild product, it remains relevant for maintaining compatibility in established hardware architectures.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Cross-reference with other manufacturers offering equivalent 74ACT157 devices in SOIC-16 packages. Verify pinout compatibility and electrical characteristics such as propagation delay and supply current to ensure seamless integration into existing designs.