54L98J

Overview

The DM54L98J is a high-speed low-power Schottky (LS) logic integrated circuit manufactured by Rochester Electronics. It functions as an 8-input multiplexer, providing eight data inputs and three select lines to route one of the inputs to a single output. The device is designed for military-grade reliability, characterized for operation over the full temperature range of -55°C to 125°C. It utilizes TTL/H/L series technology and is housed in a ceramic dual in-line package (CDIP-16), ensuring durability in harsh environments.

Feature Summary

• High-speed low-power Schottky (LS) logic technology
• 8-input multiplexer with 3 select lines
• Military temperature range: -55°C to 125°C
• Ceramic Dual In-Line Package (CDIP-16)

Applications

• Military communication systems
• Avionics signal routing
• Ruggedized data acquisition systems

Procurement Notes

Verify the CDIP-16 ceramic package configuration and military temperature rating (-55°C to 125°C) against specific project requirements. Confirm that the LS logic family characteristics align with the system's power and speed constraints. Ensure compatibility with existing board layouts designed for this specific footprint.

Selection Notes

Select this component when an 8-to-1 multiplexing function is required within a military or aerospace environment. The LS technology offers a balance between switching speed and power consumption suitable for battery-operated or thermally constrained applications. Verify voltage supply levels match the standard 5V TTL logic requirements.

Part Context

This part belongs to the SN54Lxx series of logic devices, which are standardized for military specifications. Rochester Electronics provides these components as qualified replacements or new production units based on original manufacturer designs, maintaining compliance with MIL-PRF-38535 standards for Class Q military quality.

Replacement Considerations

Direct pin-compatible substitutes include other SN54L98 variants from different manufacturers, provided they meet the same LS logic electrical characteristics and military temperature range specifications.