SN74S257N

Signal Switches, Multiplexers, Decoders Overview

The SN74S257N is a quad 2-line to 1-line data selector/multiplexer from the Texas Instruments S-series logic family. It features true outputs and three-state control. The device operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes a 16-pin ceramic dual in-line package (CDIP-16) designed for through-hole mounting. The component supports an operating temperature range from 0°C to +70°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides four independent multiplexing channels with true output polarity
• Integrates three-state output capability for bus-oriented systems
• Constructed using high-speed silicon-gate S-series technology

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system data routing
• High-speed digital signal selection
• Industrial control logic interfaces

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'N' corresponds to the ceramic DIP package variant, as packaging materials significantly impact thermal performance and mechanical durability. Confirm RoHS compliance status directly with the manufacturer, as legacy S-series parts may have different environmental declarations compared to modern equivalents. Ensure the ordering part number matches the required pin configuration and material specifications for your assembly process.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when high switching speed is required alongside robust physical construction. The S-series offers faster propagation delays than standard TTL but consumes more power. Consider the CDIP-16 package constraints for PCB layout. Evaluate power dissipation requirements against available cooling methods, as this series generates higher heat than low-power variants.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the Texas Instruments SN74S series, known for high-speed performance using silicon-gate technology. It serves as a functional equivalent to other quad multiplexers in the 7400 family but with distinct electrical characteristics. The SN74S257N provides a specialized solution for applications demanding rapid data path switching within industrial or military-grade environments requiring ceramic packaging.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74AS257N: Offers similar functionality with improved speed and lower power consumption while maintaining compatible pinouts.