DM54S139J/883

Signal Switches, Multiplexers, Decoders Overview

The DM54S139J/883 is a high-speed Schottky TTL decoder/driver manufactured by National Semiconductor. It features a single 2-to-4 line decoder configuration housed in a 16-pin ceramic dual in-line package (CDIP). The device operates asynchronously with open-collector outputs, allowing for flexible interfacing and wired-logic capabilities. Designed for military-grade reliability, it supports a wide operating temperature range from -55°C to 125°C and functions at a standard 5V supply voltage.

Signal Switches, Multiplexers, Decoders Feature Summary

• High-speed Schottky TTL logic family implementation
• Single 2-to-4 line decoding architecture
• Open-collector output structure for versatile load driving
• Military-grade ceramic packaging for harsh environment resilience

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in military computing systems
• Signal routing and demultiplexing in avionics
• Control logic interfaces requiring open-drain compatibility
• High-reliability data path selection circuits

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the authenticity of the National Semiconductor or Texas Instruments marking on the ceramic package. Confirm the presence of the J/883 suffix indicating compliance with MIL-STD-883 standards. Check for physical damage to the ceramic body and lead integrity. Ensure the component matches the specific S-TTL series designation rather than generic variants.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a ruggedized, high-speed 2-to-4 decoder is required for aerospace or defense applications. The open-collector outputs necessitate external pull-up resistors tailored to the system voltage levels. Consider the thermal management requirements associated with the 125°C maximum junction temperature limit in enclosed military enclosures.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the DM54S series, representing National Semiconductor's high-performance Schottky TTL line. The J/883 suffix denotes a hermetically sealed ceramic package qualified under MIL-STD-883, distinguishing it from commercial plastic-packaged equivalents. It serves as a critical interface element in legacy and specialized military electronic architectures.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct replacements include other MIL-qualified 2-to-4 decoders from the same manufacturer's military catalog. Verify pinout compatibility before substituting with equivalent parts from other vendors offering MIL-STD-883 certified Schottky TTL devices.