ON Semiconductor MC74VHC126DR2G Product Overview

The MC74VHC126DR2G from ON Semiconductor is a high-performance, quad bus buffer that operates with a wide voltage range of 2V to 5.5V. Designed for use in systems that require moderate drive and fast switching, this device is part of ON Semiconductor's VHC series, which is known for combining high speed with the low power consumption of CMOS technology while maintaining TTL compatibility.

Each buffer of the MC74VHC126DR2G has a separate output enable input, which allows individual control of each buffer. This feature makes it an excellent choice for a variety of applications, including driving bus lines or buffering memory address registers. The outputs can also be put into a high-impedance state, effectively disconnecting the output from the bus, which is useful in multiplexed bus applications such as data buses where multiple drivers can share the same bus lines.

The MC74VHC126DR2G is characterized for operation from -55°C to +125°C, making it suitable for automotive and industrial applications that require a wide operating temperature range. Its robustness is further enhanced by its latch-up performance, which exceeds 300mA per JESD 78, Class II standards, ensuring reliable operation even under challenging conditions.

With fast propagation delay times and output transition times, this device supports high-speed data transfer, which is crucial for modern digital systems. Additionally, the MC74VHC126DR2G features a balanced propagation delay and transition times, which helps to maintain signal integrity by reducing skew.

The device comes in a small-outline package (SOIC), specifically the 14-pin SOIC-14 variant, which is suitable for surface-mount technology (SMT) and is ideal for space-constrained applications. Its compact footprint and low profile make it a practical choice for densely packed PCBs where board space is at a premium.

In summary, the MC74VHC126DR2G from ON Semiconductor is a versatile, high-speed quad bus buffer that offers low power consumption, high noise immunity, and robust performance suitable for a wide range of applications, from automotive to industrial control systems.