SN74LS155 DIP Dual 2-Line To 4-Lin Decoder/Demultiplexer

Product Description: SN74LS155 DIP Dual 2-Line to 4-Line Decoder/Demultiplexer

The 74LS155 is a dual 2-line to 4-line decoder/demultiplexer housed in a DIP-16 package. It features two independent 2-to-4 decoders, each capable of decoding a 2-bit binary input into one of four output lines. This IC is commonly used in digital systems where a small number of input lines need to be expanded into multiple output lines based on a control signal, providing an efficient solution for address decoding, data routing, and signal multiplexing.

Each of the two decoders within the 74LS155 IC takes two binary input bits and maps them to one of four active low output lines. Only one of the output lines will be low at any given time, depending on the binary value of the input. The IC also includes an enable pin, which allows both decoders to be disabled simultaneously when not in use, ensuring better power management and reducing system noise.

The 74LS155 is TTL-compatible, allowing seamless integration with other TTL logic devices. It is designed for high-speed operation and low power consumption, making it ideal for use in data bus systems, peripheral control, signal routing, and various digital logic circuits where multiple outputs need to be activated based on 2-bit binary control inputs.

Features:

• Dual 2-Line to 4-Line Decoder/Demultiplexer: The IC contains two separate 2-to-4 decoders, each capable of decoding a 2-bit binary input into one of four active-low output lines.
• Active-Low Outputs: The outputs are active-low, meaning only one of the four outputs will be low (active) at a time, corresponding to the binary value of the input.
• Enable Pin: The enable pin can be used to disable both decoders, conserving power and preventing unwanted outputs in systems that require selective operation.
• TTL Compatible: Fully TTL-compatible, making the IC ideal for integration with other TTL logic devices and systems.
• High-Speed Operation: Designed for high-speed performance, ensuring fast switching between output lines based on the 2-bit input.
• Low Power Consumption: The 74LS155 operates with low power, making it ideal for energy-efficient applications.
• DIP-16 Package: The IC comes in a DIP-16 package, allowing easy mounting on breadboards or integration into printed circuit boards (PCBs).

Applications:

• Data Bus Systems: The 74LS155 is used in data bus systems where two bits of control input are needed to select one of four output lines for data transfer or routing.
• Signal Routing: In signal routing applications, the IC is used to direct signals to one of four paths based on a 2-bit address input.
• Address Decoding: The IC is often used for address decoding in memory or peripheral devices, where a small number of binary address lines need to be expanded into multiple output lines.
• Peripheral Device Control: The 74LS155 can be used in control systems to enable or select one of four peripherals or devices based on 2-bit control inputs.
• Control Logic: In digital control systems, this decoder is ideal for enabling or selecting specific pathways, memory addresses, or device control lines.
• Timing and Sequencing: The IC can be used in timing and sequencing applications where multiple stages or steps are selected based on a binary control input.
• Digital Logic Circuits: The 74LS155 is useful in combinational logic circuits for selecting specific output lines based on a 2-bit address, simplifying complex logic functions.

Package Included:

• 1 x SN74LS155 Dual 2-Line to 4-Line Decoder/Demultiplexer IC
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