SNJ54AHC157J

Signal Switches, Multiplexers, Decoders Overview

The SNJ54AHC157J is a military-grade quadruple 2-line to 1-line data selector/multiplexer from the AHC logic family. It operates within a supply voltage range of 2V to 5.5V and features a common active-low strobe input that forces all outputs low when asserted high. The device provides true data routing for four independent channels, selecting between two sources based on an address select pin. It is housed in a 16-pin Ceramic Dual In-Line Package (CDIP) designed for -55°C to +125°C operating temperatures.

Signal Switches, Multiplexers, Decoders Feature Summary

• Military-grade qualification ensuring reliability for defense applications
• High electrostatic discharge protection exceeding standard industrial limits
• Robust latch-up performance capable of withstanding significant current stress

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 'J' corresponds to the CDIP package configuration required for your assembly process. Confirm that the QML certification status aligns with your program's quality assurance mandates. Ensure compatibility with existing ceramic DIP footprints during the design-in phase.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when extended temperature coverage below -40°C is mandatory. The AHC series offers superior speed compared to legacy AC devices while maintaining CMOS power efficiency. Verify that the 16-pin CDIP footprint matches the target PCB layout constraints.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SNx4AHC157 family, which includes commercial variants like the SN74AHC157. The SNJ prefix specifically denotes the military-qualified version manufactured under strict quality control standards. It shares identical logical functionality with its commercial counterparts but adheres to higher reliability thresholds.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SNJ54AHC157FK

Signal Switches, Multiplexers, Decoders FAQ

What is the function of the G input?

The G input acts as an active-low output strobe. When G is high, all outputs are forced to a low state regardless of the address or data inputs.

How does the SNJ54AHC157J handle unused inputs?

All unused inputs must be connected to either VCC or GND to prevent undefined operational states caused by floating voltages.