SNJ54F280BJ

Overview

The SNJ54F280BJ is a 9-bit parity generator and checker from the Texas Instruments SN54F series. It operates within a military-grade temperature range of -55°C to 125°C. The device utilizes a hermetically sealed ceramic flatpack package with 20 pins, designated as DFP-20. It functions as a logic integrated circuit designed for high-reliability applications requiring robust data integrity verification.

Feature Summary

• Provides simultaneous generation and checking of parity bits for 9-bit data words
• Features hermetically sealed ceramic construction for environmental durability
• Supports operation across extended military temperature ranges

Applications

• Military aerospace communication systems
• High-reliability industrial control networks
• Data integrity verification in defense electronics

Procurement Notes

Verify the specific suffix 'BJ' confirms the ceramic flatpack package and military temperature rating. Ensure compatibility with existing board layouts for the 20-pin DFP footprint. Confirm that the hermetic seal requirement aligns with the project's environmental protection standards before finalizing procurement.

Selection Notes

Select this component when military-grade reliability and hermetic sealing are mandatory. The SN54F series offers faster switching speeds compared to standard TTL but consumes more power. Consider the 20-pin ceramic package constraints during mechanical design. This part is suitable for environments where plastic packages may fail due to moisture or thermal stress.

Part Context

This component belongs to the SN54F series of logic devices, which are characterized by fast propagation delays. The SN54 designation indicates military qualification, distinguishing it from commercial SN74 variants. The F280 function is standardized across the family, ensuring functional interchangeability with other manufacturers' equivalents meeting the same specifications.

Replacement Considerations

Public confirmed substitute part numbers include 54F280DC.