DM54LS169J/883

Counter Dividers Overview

The DM54LS169J/883 is a military-grade, low-power Schottky (LS) TTL synchronous up/down binary counter manufactured by National Semiconductor. It features an 8-pin ceramic flatpack (CDFP) package with gold-plated leads and operates within a -55°C to +125°C temperature range. The device includes parallel load capability, a count enable input, and a terminal count output for cascading. It functions as a bidirectional 4-bit counter with a maximum operating frequency of 25 MHz at nominal supply voltage.

Counter Dividers Feature Summary

• Synchronous four-bit binary counting with bidirectional up/down control
• Parallel data loading capability via dedicated inputs
• Dedicated count enable inputs for gating clock signals
• Terminal count output for multi-stage cascading applications

Counter Dividers Applications

• Military aerospace timing and sequencing circuits
• High-reliability digital counters in harsh environments
• Cascaded frequency division networks
• Precision event counting systems

Counter Dividers Procurement Notes

Verify the presence of the MIL-STD-883 qualification marking on the component body. Confirm the specific suffix 'J/883' denotes the ceramic flatpack variant. Ensure documentation matches National Semiconductor or Texas Instruments historical records. Request batch traceability certificates for defense procurement compliance.

Counter Dividers Selection Notes

Select this component when military temperature ranges and high-speed synchronous counting are required. Compare against standard commercial LS TTL variants if environmental constraints allow. Verify pin compatibility with existing PCB footprints for the 16-pin flatpack configuration. Consider power dissipation limits under maximum load conditions.

Counter Dividers Part Context

This part belongs to the DM54 series of military-grade logic devices produced by National Semiconductor. The LS designation indicates Low-power Schottky technology, offering a balance of speed and power consumption. The /883 suffix signifies adherence to MIL-STD-883 testing standards for microelectronics.

Counter Dividers Replacement Considerations

• DM54LS169AW/883
• DM54LS169N/883