SNJ54LS258BW

Signal Switches, Multiplexers, Decoders Overview

The SNJ54LS258BW is a military-grade quadruple 2-line to 1-line data selector/multiplexer from Texas Instruments' LS series. It integrates four independent multiplexers in a single package, featuring three-state outputs for bus-oriented systems. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports an extended industrial temperature range of -55°C to +125°C. Key electrical characteristics include a propagation delay of 21 ns and high noise immunity typical of LS TTL logic. It is housed in a 16-lead ceramic dual-in-line package (CDIP) designed for high-reliability applications.

Signal Switches, Multiplexers, Decoders Feature Summary

• Military-grade reliability with extended temperature operation
• Quadruple configuration for compact system design
• Three-state outputs for efficient bus sharing
• High-speed signal selection capabilities

Signal Switches, Multiplexers, Decoders Applications

• Military avionics signal routing
• Spacecraft data management systems
• High-reliability industrial control interfaces
• Defense communication equipment multiplexing

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'BW' indicates the ceramic dual-in-line package and military temperature grade during sourcing. Confirm RoHS compliance status as military parts may follow different regulatory frameworks. Ensure the supplier provides traceability documentation required for defense or aerospace procurement standards. Check for obsolescence notices given the legacy nature of the LS series.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when military qualification and wide temperature tolerance are mandatory. Compare against plastic-packaged variants if environmental sealing is not required. Consider pin compatibility with existing PCB footprints designed for CDIP packages. Evaluate power consumption requirements against other LS family members for thermal management planning.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN54LS258 family, which differs from the commercial SN74LS258 series by meeting stricter military specifications. The 'B' prefix denotes the LS logic type, while 'W' typically signifies the ceramic package variant. This distinction ensures suitability for harsh environments where standard commercial components would fail due to temperature or humidity stress.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SNJ54LS258BW is functionally equivalent to other military-grade LS quad multiplexers. Verify pinout compatibility before substituting with similar parts from other manufacturers. Ensure the replacement maintains the same three-state output capability and voltage levels.