8512401EA

Signal Switches, Multiplexers, Decoders Overview

The SN54HC257 (8512401EA) is a military-grade, four-channel 2-line to 1-line data selector/multiplexer featuring three-state outputs. It operates within a supply voltage range of 2V to 6V and supports an extended temperature range from -55°C to +125°C. Key electrical parameters include a propagation delay of 9ns at 6V with 50pF load and a static current of 8uA. The device is housed in a 16-lead CDIP package.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides four independent channels for selecting between two data inputs
• Features three-state outputs for bus-oriented applications
• Supports reverse functionality for flexible signal routing

Signal Switches, Multiplexers, Decoders Applications

• Military aerospace systems requiring wide temperature tolerance
• Industrial control systems with harsh environmental conditions
• Data acquisition systems utilizing bus-oriented architectures

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'J' corresponds to the 16-lead ceramic dual in-line package (CDIP). Confirm that the SN54HC257 designation aligns with the 8512401EA part number for military-grade specifications. Ensure compatibility with -55°C to +125°C operating requirements before procurement.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when high-reliability multiplexing is required in extreme environments. The SN54HC series offers HC logic performance with military qualification. Consider the 16-lead CDIP package for through-hole mounting needs in ruggedized designs where standard plastic packages are insufficient.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN54HC257 family of quadruple 2-input multiplexers. It is distinguished by its military-grade qualification and ceramic packaging. The device serves as a core switching element in digital logic circuits, providing reliable signal selection across a wide voltage and temperature spectrum compared to commercial variants.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include other SN54HC257 variants with compatible pinouts. Verify package integrity and temperature ratings match the original military specification. Cross-reference with SN54HC257J or equivalent military-grade sources if availability is constrained.