ON Semiconductor MC74HC126ADG Quadruple Bus Buffer

The ON Semiconductor MC74HC126ADG is a high-performance quadruple bus buffer integrated circuit, designed to offer both the drive capabilities of a buffer and the signal gating functionality of a line driver. This device is part of the high-speed CMOS family and is fabricated with silicon gate CMOS technology to achieve fast propagation delays, low quiescent currents, and robustness against latch-up.

Each of the four independent buffers in the MC74HC126ADG features a 3-state output, which can be either active high, active low, or placed in a high impedance state. This 3-state functionality allows for connection to a bus without affecting the bus line when the output is disabled. The outputs are controlled by separate output enable (OE) inputs, which dictate the state of each buffer.

The MC74HC126ADG operates over a wide voltage range from 2V to 6V, making it compatible with a variety of logic levels and suitable for interfacing with both TTL and CMOS technologies. This flexibility is essential for mixed-voltage systems and allows the device to be used in a broad array of applications, from personal computers to instrumentation and control systems.

Designed for optimized power and speed, the MC74HC126ADG is capable of driving heavy loads while maintaining low power dissipation. This makes it an excellent choice for high-speed, power-sensitive applications. Additionally, the device's inputs are high-impedance, which reduces loading on the preceding stages and contributes to its energy-efficient operation.

The MC74HC126ADG is offered in a 14-pin SOIC package, providing a compact footprint that is suitable for space-constrained applications. The package is also designed for trouble-free manufacturing, with a lead-free finish and industry-standard dimensions for compatibility with automated assembly processes.

Overall, the ON Semiconductor MC74HC126ADG is a versatile and reliable component that provides the necessary features for high-performance digital systems, ensuring signal integrity while offering the ease of integration and energy efficiency that modern electronic designs require.