74LCX126SJ

Overview

The Fairchild Semiconductor 74LCX126SJ is a low-voltage quad buffer featuring five-volt tolerant inputs and outputs. It operates within a supply voltage range of 2.3V to 3.6V, utilizing advanced CMOS technology for high-speed performance. The device contains four independent non-inverting buffers with output enable controls, housed in a 14-pin Small Outline Package (SOP).

Feature Summary

• Provides five-volt tolerant input and output capabilities for mixed-voltage system interfacing.
• Features low supply voltage operation optimized for 2.5V and 3.3V applications.
• Includes individual output enable pins to control data transmission direction.

Applications

• Mixed-voltage bus buffering between different logic families.
• High-speed data line drivers in portable electronic devices.
• Signal isolation in multi-voltage digital communication systems.

Procurement Notes

Verify the specific suffix 'SJ' against official datasheets to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with existing PCB footprints by checking pin-out alignment. Confirm RoHS compliance status through manufacturer documentation prior to procurement.

Selection Notes

Select this component when interfacing low-voltage logic with five-volt environments is required. Consider the propagation delay characteristics relative to system clock speeds. Evaluate power consumption requirements against the device's active current specifications for battery-operated designs.

Part Context

This part belongs to the LCX series of low-voltage CMOS logic devices. It serves as a buffer variant within the broader family that includes inverters, transceivers, and gates. The series is designed to replace older TTL equivalents while offering improved speed and lower power dissipation.

Replacement Considerations

Check for direct substitutes from ON Semiconductor or other manufacturers offering equivalent LCX-series quad buffers. Verify pin compatibility and electrical parameters before substitution.