The DM54LS154J is a 4-to-16 line decoder/demultiplexer manufactured by National Semiconductor, now part of Texas Instruments (TI). This device is part of the 54LS series, which is a low-power Schottky TTL logic family. The 'J' suffix typically indicates a ceramic flatpack package. As an END-OF-LIFE product, it is no longer actively manufactured but may still be available through distributors or in older equipment.

Applications

• Memory address decoding
• Data routing
• Chip selection
• Keyboard scanning
• Instrumentation and control systems

Features

• 4-to-16 line decoding
• Low power consumption
• Schottky TTL technology
• High noise immunity
• Multiple enable inputs for expansion

Benefits

• Simplified address decoding logic
• Reduced power consumption compared to standard TTL
• Increased system reliability
• Easy expansion for larger decoding applications
• Improved system performance

Additional Details

The DM54LS154J is a 24-pin device. It has four address inputs (A, B, C, D) and two enable inputs (G1, G2). When both enable inputs are low, one of the sixteen output lines (Y0-Y15) will be low, corresponding to the binary value of the address inputs. Consult the datasheet for detailed electrical characteristics, including propagation delays, input and output voltage levels, and power dissipation. The ceramic flatpack package provides high reliability and temperature stability, often used in military and aerospace applications.