74LCX126MTCX

Overview

The Fairchild Semiconductor 74LCX126MTCX is a low-voltage quad buffer featuring five-volt tolerant inputs and outputs. It operates within a supply voltage range of 2.0V to 3.6V, utilizing advanced CMOS technology for high-speed performance with low power consumption. The device provides non-inverting logic functionality with an output enable control pin for each pair of buffers. Packaged in a 14-pin TSSOP surface-mount format, it supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Features five-volt tolerant inputs and outputs for safe interfacing between different voltage domains
• Provides controlled signal transmission via dedicated output enable pins
• Utilizes advanced CMOS technology to achieve high-speed operation with minimal power dissipation

Applications

• Interface buffering between low-voltage logic systems and five-volt environments
• Signal isolation and direction control in data bus architectures
• Level shifting applications requiring non-inverting signal paths

Procurement Notes

Verify the specific manufacturer source, as production rights for this component may have transferred to onsemi. Confirm that the 74LCX126MTCX designation matches the exact electrical specifications and package dimensions required for your design. Ensure compatibility with existing board layouts and soldering profiles for the TSSOP-14 package.

Selection Notes

Select this component when non-inverting buffering with five-volt tolerance is required for low-voltage digital circuits. The quad configuration offers four independent channels, each with individual output enable controls. Consider the TSSOP-14 package constraints and ensure the operating voltage remains within the specified 2.0V to 3.6V range for optimal performance.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices. The LCX family is designed to bridge legacy five-volt systems with modern lower-voltage technologies. The 126 variant specifically provides buffered outputs with enable controls, distinguishing it from standard unidirectional buffers like the 125 or 127.

Replacement Considerations

The 74LCX125MTCX serves as a similar alternative but lacks the output enable functionality. Verify if the enable control feature is critical for the application before substituting.