DM9312W/883

Overview

The DM9312W/883 is a military-grade 1-of-8 line data selector/multiplexer manufactured by National Semiconductor. It operates on a 5 V supply and features a 16-pin ceramic flatpack package. The device provides full complementary binary decoded data selection with inverter/drivers for output stages. It supports an operating temperature range from -55 °C to 125 °C and includes screening levels compliant with MIL-STD-883B standards.

Feature Summary

• Provides one-of-eight line data selection functionality
• Includes inverter/drivers for full complementary output stages
• Utilizes binary decoded data selection mechanism
• Designed for high-reliability military and aerospace applications

Applications

• Military electronic systems requiring high reliability
• Aerospace data routing and switching
• Harsh environment signal multiplexing
• TTL logic interface circuits

Procurement Notes

Verify the specific suffix 'W/883' confirms the ceramic flatpack package and MIL-STD-883B screening level. Ensure compatibility with existing TTL logic families and 5 V power requirements. Confirm that the component meets the required thermal and radiation specifications for the intended operational environment before procurement.

Selection Notes

Select this component when a single-channel, eight-input multiplexer is required for critical applications. It is suitable for designs needing robust performance across extreme temperatures. Consider the physical dimensions of the 16-pin ceramic flatpack during PCB layout. Verify that the input voltage levels align with standard TTL logic thresholds.

Part Context

This part belongs to the DM93xx series of digital logic components produced by National Semiconductor. These devices are designed for high-performance digital applications. The DM9312 specifically functions as a data selector, distinguishing it from decoders or drivers within the same family. It represents a specialized solution for signal routing in complex digital systems.

Replacement Considerations

Check for direct equivalents such as the DM9312J/883 if a DIP package is acceptable instead of the flatpack variant. Verify pinout compatibility and electrical characteristics before substituting. Ensure any replacement maintains the required MIL-STD-883B screening and temperature range.