74126 IC Quad Bus Buffer Tri-state

The 74126 Quad Bus Buffer Tri-State IC is a TTL logic device with four independent buffers and 3-state outputs, housed in a DIP-14 package. It offers high-speed operation, low power dissipation, and enables controlled bus driving in digital circuits and microprocessor systems.

74126 IC Quad Bus Buffer Tri-state

The 74126 IC is a Quad Bus Buffer with Tri-State outputs, widely used in digital logic circuits for bus-oriented applications. Each buffer has an enable input, allowing control of data flow and reducing contention on shared data lines. With TTL logic compatibility, it is ideal for microprocessor systems, embedded designs, and high-speed digital communication buses.

🔹 Applications

Bus interfacing and data line control
Microprocessor and microcontroller systems
Memory address/data bus drivers
Embedded systems and digital logic boards
Robotics and automation controllers
DIY electronics & educational electronics kits

🔹 Precautions

Do not exceed the maximum supply voltage of 7V
Avoid direct short-circuits on outputs
Handle with care to prevent ESD damage
Always provide proper grounding for noise reduction
Limit soldering temperature (<260°C for max 10s)

🔹 Technical Specifications

IC Type: Quad Bus Buffer with Tri-State Outputs
Package Type: DIP-14
Logic Family: 74 Series TTL
Supply Voltage (Vcc): 4.75V – 5.25V
Number of Buffers: 4 independent buffers
Output State Control: Active high enable pin per buffer
Output Type: 3-state (High, Low, High-Z)
Input Current: 1µA max
Propagation Delay: ~15ns (typical at 5V)
Fan-out: 10 LS-TTL loads
Operating Temperature Range: 0°C to +70°C
Pin Count: 14 pins

📹 Tutorial Video

Watch 74126 Quad Bus Buffer Tutorial

🔹 Related Categories

🔹 Summary

The 74126 Quad Bus Buffer Tri-State IC (DIP-14) is a reliable and efficient solution for managing data flow in digital systems. With four independent tri-state buffers, it ensures smooth bus communication, low power consumption, and compatibility with TTL logic. Perfect for DIY electronics, robotics, microcontroller projects, and professional digital circuit design. A must-have in every IC’s collection.