Texas Instruments

SN74HCS139DR  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74HCS139DR Description

The SN74HCS139DR is a dual 2-line to 4-line decoder/demultiplexer from Texas Instruments, designed for high-speed, low-power applications. This device is part of the 74HCS series, known for its excellent performance and reliability in digital logic circuits. The SN74HCS139DR features two independent 2-line to 4-line decoding circuits, making it highly versatile for various digital applications. It operates on a single supply voltage ranging from 2V to 6V, ensuring compatibility with a wide range of power sources. The device is packaged in a surface-mount format, specifically in a tape and reel (TR) configuration, which is ideal for automated assembly processes. With a moisture sensitivity level (MSL) of 1 (unlimited), the SN74HCS139DR is suitable for a variety of manufacturing environments. Additionally, it complies with REACH and ROHS3 standards, ensuring environmental and safety compliance.

SN74HCS139DR Features

• Dual Decoding Circuits: The SN74HCS139DR includes two independent 2-line to 4-line decoding circuits, providing flexibility in digital signal processing.
• Single Supply Operation: The device operates on a single supply voltage between 2V and 6V, simplifying power supply design and reducing power consumption.
• High-Speed Performance: As part of the 74HCS series, the SN74HCS139DR offers high-speed performance, making it suitable for demanding digital applications.
• Surface-Mount Packaging: The surface-mount package (Tape & Reel) facilitates easy integration into modern PCB designs and automated assembly processes.
• Environmental Compliance: The SN74HCS139DR is REACH unaffected and ROHS3 compliant, ensuring it meets environmental and safety standards.
• Low Moisture Sensitivity: With an MSL of 1 (unlimited), the device is suitable for a variety of manufacturing environments without the need for special handling.
• High Output Current: The device can provide up to 7.8mA for both high and low outputs, ensuring robust signal handling capabilities.

SN74HCS139DR Applications

The SN74HCS139DR is ideal for a range of applications where efficient signal decoding and demultiplexing are required. Some specific use cases include:

• Digital Systems: In digital systems, the SN74HCS139DR can be used to decode address lines, enabling the selection of specific memory locations or peripheral devices.
• Microcontroller Applications: The device can interface with microcontrollers to manage multiple input/output lines efficiently, reducing the number of required pins.
• Data Multiplexing: The SN74HCS139DR can be used to route data signals to multiple destinations, enhancing the functionality of digital circuits.
• Memory Management: In memory management systems, the SN74HCS139DR can decode address lines to select specific memory banks or modules.
• Consumer Electronics: The device is suitable for consumer electronics where compact size and low power consumption are critical, such as in smartphones, tablets, and other portable devices.

Conclusion of SN74HCS139DR

The SN74HCS139DR from Texas Instruments is a versatile and reliable dual 2-line to 4-line decoder/demultiplexer, offering high-speed performance and low power consumption. Its dual decoding circuits provide flexibility in digital signal processing, making it suitable for a wide range of applications. The surface-mount packaging and environmental compliance make it an ideal choice for modern electronics manufacturing. With its robust output current capabilities and low moisture sensitivity, the SN74HCS139DR ensures reliable performance in various operating conditions. This device is an excellent choice for engineers and designers looking for a high-performance, low-power solution for their digital circuit needs.

SN74HCS139DR Documents

Download datasheets and manufacturer documentation for SN74HCS139DR

PCN :

Product Change Notification (PDF)