74LCX125M

Overview

The Fairchild Semiconductor 74LCX125M 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 and utilizes CMOS technology for high-speed performance with low power consumption. The device provides four non-inverting buffers, each equipped with an independent output enable control pin. Designed for industrial temperature ranges from -40°C to +85°C, it supports surface-mount packaging options including SOIC and TSSOP formats.

Feature Summary

• Provides four non-inverting buffer channels with independent output enable controls
• Features five-volt tolerant inputs and outputs for safe interfacing between different logic families
• Utilizes advanced CMOS technology to achieve high-speed operation with low static power consumption

Applications

• Interface buffering between low voltage microcontrollers and five-volt peripheral devices
• Signal conditioning in portable consumer electronics requiring low power operation
• Data bus driving in industrial control systems operating within the specified voltage range

Procurement Notes

Verify the specific package variant (SOIC or TSSOP) as the base part number may correspond to multiple physical forms. Confirm current availability status through authorized distributors, noting that original Fairchild products are now managed by onsemi. Ensure the selected component meets the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when interfacing between 3.3V or 2.5V logic domains and 5V tolerant buses is required. The independent enable pins allow precise control over signal direction and bus isolation. Consider the package type based on PCB space constraints and manufacturing capabilities, ensuring compatibility with automated assembly processes.

Part Context

This device belongs to the 74LCX series of low voltage CMOS logic components. It serves as a buffer solution within the broader family of interface and driver ICs designed for modern low voltage digital systems. The product line emphasizes compatibility with both legacy five-volt standards and contemporary low voltage architectures.

Replacement Considerations

Equivalent parts include the 74LCX125MTC and 74LCX125MTCX variants which share identical logical functionality but differ in packaging. Cross-reference with other manufacturers' five-volt tolerant quad buffers such as those from NXP or Texas Instruments if sourcing constraints exist.