SNJ54AHC157W

Signal Switches, Multiplexers, Decoders Overview

The SNJ54AHC157W is a military-grade quadruple 2-line to 1-line data selector/multiplexer designed for operation within a supply voltage range of 2V to 5.5V. It features a common active-low strobe input that forces all outputs low when asserted, allowing selection between two data sources when deasserted. The device provides true data routing across four independent channels. It is housed in a 16-pin Ceramic Flat Pack (CFP) package and supports an operating free-air temperature range from -55°C to +125°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Military-grade qualification compliant with MIL-PRF-38535 standards
• High electrostatic discharge protection exceeding specified JESD limits
• Latch-up performance rated above 250mA per JESD 17 specifications

Signal Switches, Multiplexers, Decoders Applications

• Military avionics signal routing
• Defense communication systems
• Spacecraft data management

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'W' corresponds to the CFP package configuration required for your design. Confirm the presence of the QML certification markings on the component body. Ensure the procurement channel is authorized for defense-grade components to guarantee traceability and compliance with military specifications.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when radiation-hardened or high-reliability military environments require robust multiplexing capabilities. The wide temperature range ensures functionality under extreme thermal conditions where standard commercial parts would fail. Verify that the CFP package dimensions fit the mechanical constraints of the target chassis.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SNx4AHC157 family of quadruple multiplexers manufactured by Texas Instruments. While the SN74AHC157 variant serves commercial applications, the SNJ prefix indicates a specialized military version. The 'W' suffix specifically denotes the ceramic flat pack packaging style used for high-reliability deployments.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SNJ54AHC157FK

Signal Switches, Multiplexers, Decoders FAQ

What is the function of the G pin?

The G pin acts as an active-low output strobe. When high, it forces all outputs low regardless of input states.

How does the A/B pin operate?

The A/B pin serves as the address select input, determining which of the two data sources (A or B) is routed to the outputs.