DM9311W/883

Overview

The DM9311W/883 is a high-reliability decoder and demultiplexer manufactured by National Semiconductor. It features a 1-to-16 channel configuration, providing sixteen distinct output lines controlled by four binary address inputs. The device operates within a standard TTL voltage range of 4.75V to 5.25V. It is housed in a 24-pin Ceramic Flat Pack (CFP) package, designed for robust performance in demanding environments. This component serves as a critical signal routing element in digital systems requiring precise data distribution.

Feature Summary

• Provides 1-to-16 decoding capability for digital signal routing
• Operates on standard TTL logic levels
• Constructed with ceramic packaging for enhanced durability

Applications

• Military aerospace avionics systems
• High-reliability industrial control units
• Defense communication equipment

Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm compliance with MIL-STD requirements. Ensure the ceramic flat pack package integrity matches system mounting specifications. Cross-reference part numbers carefully, as suffixes may indicate variations in testing or qualification standards that affect suitability for regulated applications.

Selection Notes

Select this component when a ruggedized, military-grade demultiplexer is required for mission-critical applications. The ceramic construction offers superior thermal and mechanical stability compared to plastic packages. Consider the 24-pin footprint and TTL compatibility during board layout and interface design to ensure seamless integration into existing digital architectures.

Part Context

This part belongs to the DM93 series, which encompasses various logic functions designed for military and aerospace specifications. National Semiconductor produced these components to meet stringent reliability standards. The DM9311 specifically addresses the need for reliable data selection and distribution in harsh operational environments where standard commercial parts would fail.

Replacement Considerations

Consult official substitution guides for equivalent military-grade decoders. Verify pinout compatibility and electrical characteristics before replacing. Generic equivalents may not meet the same environmental or reliability qualifications.