74AC157SC

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74AC157SC is a high-speed CMOS quad 2-input multiplexer. It features four independent data selectors, each capable of routing one of two inputs to a single output based on common select lines. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports through-hole mounting in a 16-lead Plastic Dual-In-Line Package (PDIP). It provides buffered outputs with true data presentation and includes an active-low strobe input for enabling or disabling the selected channels.

Signal Switches, Multiplexers, Decoders Feature Summary

• Contains four independent 2-to-1 data selectors with common selection control
• Provides buffered true outputs for reliable signal transmission
• Features an active-low strobe input for channel enable/disable functionality
• Supports wide operating voltage range from 1.5 V to 5.5 V

Signal Switches, Multiplexers, Decoders Applications

• Data routing in digital logic systems
• Signal selection in microprocessor interfaces
• Multiplexing applications requiring buffered outputs

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'SC' against the manufacturer's current datasheet to confirm package type and pinout compatibility. Ensure the component meets RoHS requirements if applicable to your assembly process. Cross-reference the ordering code with official distributor catalogs to confirm availability and lead times before finalizing procurement plans.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a quad 2-input multiplexer with buffered outputs is required. It is suitable for applications needing operation across a wide voltage range including 3.3 V and 5 V systems. Consider the PDIP-16 package constraints for board space and thermal management compared to surface-mount alternatives.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74AC series of high-speed CMOS logic devices. It is functionally compatible with other 74AC157 variants from different manufacturers, such as Texas Instruments or ON Semiconductor, provided pinouts and electrical characteristics align. The AC series offers improved speed over standard LS logic while maintaining low power consumption.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Equivalent parts include CD74AC157E (Texas Instruments) and TC74AC157FN (Toshiba). Verify that substitute packages match the physical footprint and that electrical parameters like propagation delay and output drive strength meet design specifications.