54F157FM-MLS

Overview

The 54F157FM-MLS is a high-speed F/FAST series logic component manufactured by National Semiconductor. It functions as a 1-of-8 decoder or demultiplexer, designed for memory-decoding and data-routing applications. The device utilizes TTL technology and is housed in a ceramic hermetic package suitable for demanding environments. Specific electrical parameters such as propagation delay, supply voltage range, and operating temperature limits are not provided in the available documentation.

Feature Summary

• Function: 1-of-8 Decoder/Demultiplexer
• Logic Family: F/FAST (High-Speed TTL)
• Manufacturer: National Semiconductor

Part Context

This component belongs to the 54-series military-grade logic family, characterized by hermetic ceramic packaging. It is distinct from commercial plastic-packaged variants like the SN74F157. The 'MLS' suffix typically denotes a specific manufacturing lot or qualification level, though exact details are not defined in the source text.

Replacement Considerations

Compatible replacements include other 54-series 1-of-8 decoders from manufacturers offering hermetic packages, such as the DM54F157. Ensure the substitute maintains the required radiation hardness and hermetic seal if used in aerospace or harsh environment applications.