74LS126AN DIP Quad Bus Buffer with Three-State Output, Positive Enable

Product Description: 74LS126AN DIP Quad Bus Buffer with Three-State Output, Positive Enable

The 74LS126AN is a quad bus buffer IC housed in a DIP-14 package, designed with three-state outputs and positive enable control. This versatile device is commonly used for data bus interfacing, allowing multiple devices to share the same bus lines without interfering with each other. The three-state outputs enable the buffer to be connected or disconnected from the bus depending on the enable signal, making it ideal for applications where multiple devices need to communicate on a shared bus.

The IC features four independent buffers, each controlled by its own positive enable input. When the enable input is high, the buffer is enabled and can drive the bus with either a logic high or low output. When the enable input is low, the buffer’s output enters the high-impedance state, effectively isolating the buffer from the bus and allowing other devices to use the bus without interference. This positive enable control allows for efficient signal routing, ensuring that only the active devices interact with the shared bus at any given time.

The 74LS126AN is TTL-compatible, allowing it to interface easily with other TTL logic devices. It is widely used in multiplexers, address decoders, data bus switching circuits, and other applications where signal isolation and controlled data flow are critical.

Features:

• Quad Bus Buffer: The 74LS126AN provides four independent bus buffers, each capable of driving the bus with either a logic high or low output, offering efficient data routing in bus systems.
• Three-State Outputs: The three-state outputs allow the buffer to be disconnected from the bus when not in use, preventing bus contention and ensuring smooth communication between multiple devices.
• Positive Enable Control: Each buffer is controlled by a positive enable input. When the enable is high, the buffer is active and drives the bus. When the enable is low, the buffer’s output enters a high-impedance state, isolating the buffer from the bus.
• TTL Compatible: The 74LS126AN is fully TTL-compatible, ensuring seamless integration with other TTL logic devices in digital systems.
• Low Power Consumption: Designed for low-power operation, making it ideal for energy-efficient systems and portable applications.
• DIP-14 Package: The IC is available in a DIP-14 package, making it suitable for breadboard prototyping and integration into PCBs for final product designs.
• High-Speed Operation: The 74LS126AN offers fast switching speeds, ensuring minimal propagation delay for high-speed data transfer and control applications.

Applications:

• Data Bus Systems: The 74LS126AN is ideal for data bus systems, where multiple devices share a common bus. It ensures that only one device is driving the bus at any given time, preventing bus contention and signal conflicts.
• Signal Isolation: The IC’s three-state outputs are perfect for signal isolation in systems where multiple devices need to connect to the same bus but should not interfere with each other.
• Multiplexers: In multiplexing applications, the 74LS126AN allows multiple signal lines to be switched in and out of the data bus, ensuring efficient routing of data without signal interference.
• Memory Access: Used in memory systems to isolate the bus and prevent multiple devices from accessing the bus simultaneously, ensuring orderly data transfer and efficient memory management.
• Address Decoding: The 74LS126AN can be used in address decoding circuits to control access to memory or peripheral devices based on the enable signals, helping manage which devices communicate with the system at any given time.
• Peripheral Device Control: In systems with multiple peripheral devices, the 74LS126AN buffers the data between the CPU and peripherals, allowing selective communication based on the enable inputs.
• Data Transmission: The IC is used in data transmission circuits where isolation between different parts of a system is needed, such as in data processing or signal routing systems.

Package Included:

• 1 x 74LS126AN Quad Bus Buffer with Three-State Output, Positive Enable IC
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