The 54F139DM is a high-speed dual 2-to-4 line decoder/demultiplexer manufactured by Rochester Electronics. This device is part of the 54F family of advanced Schottky TTL logic devices, known for their fast switching speeds and high output drive capabilities. Rochester Electronics specializes in manufacturing end-of-life and mature products, ensuring continued availability of critical components.

Applications:

• Memory addressing.
• Data routing and distribution.
• Logic decoding in digital systems.
• Control signal generation.
• Instrumentation and test equipment.

Features:

• Dual 2-to-4 line decoder/demultiplexer.
• High-speed operation.
• Low power consumption.
• Enable inputs for easy expansion.
• Complementary outputs.

Benefits:

• Simplifies complex logic functions.
• Improves system performance with fast switching speeds.
• Reduces power requirements.
• Offers flexibility in system design.
• Provides both active high and active low outputs.

Additional Details:

The 54F139DM operates from a 5V power supply and is typically available in a ceramic dual-in-line package (CERDIP). Key electrical characteristics include a typical propagation delay of around 5ns and a maximum supply current of around 30mA. The device is pin-compatible with other standard 74F139 devices. It can be used to decode addresses, select memory locations, or route data signals. It's particularly useful in applications where speed is critical, such as in high-performance computing systems and digital signal processing equipment. The availability of this device from Rochester Electronics ensures that legacy systems can continue to be supported without requiring extensive redesigns. Because Rochester Electronics specializes in continuing the supply of devices that may no longer be produced by the original manufacturer, the 54F139DM ensures that mission critical applications that rely on this part will continue to be supported.