74LCX126SJX

Overview

The Fairchild Semiconductor 74LCX126SJX is a low voltage quad buffer with 5V tolerant inputs, fabricated using advanced CMOS technology. It operates within a VCC range of 2.3V to 3.6V and features four independent non-inverting buffers with 3-state outputs. The device achieves high-speed operation with a maximum propagation delay (tPD) of 5.2 ns at VCC = 3.3V. It utilizes a 14-SOP package and includes 5V tolerant input structures compatible with 3V systems.

Feature Summary

• Contains four independent non-inverting buffers with 3-state outputs
• Features 5V tolerant inputs for compatibility with 3V systems
• Fabricated with advanced CMOS technology for high speed and low power dissipation

Applications

• High-speed data buffering in low voltage digital systems
• Interface circuits between 3V and 5V logic domains
• Memory address and data bus buffering applications

Procurement Notes

Verify the component status as this part may be discontinued or obsolete by the manufacturer. Confirm current availability through authorized distributors or alternative sources. Ensure the datasheet version matches the specific revision required for your design. Check for pin-compatible replacements if original supply is unavailable.

Selection Notes

Select this component when designing low voltage logic circuits requiring 5V tolerant inputs. It is suitable for applications needing high-speed buffering with minimal power consumption. Consider the 14-SOP package constraints and thermal requirements. Verify that the 3-state output control meets the system's bus management needs.

Part Context

This component belongs to the 74LCX series of low voltage CMOS logic devices. The LCX family is designed for high-speed operation while maintaining low power dissipation. It serves as a buffer/driver solution for modern digital systems operating at reduced voltage levels compared to traditional 5V logic families.

Replacement Considerations

Check for equivalent parts from ON Semiconductor or other manufacturers offering similar low voltage quad buffer specifications. Ensure the replacement maintains 5V tolerance and 3-state output functionality. Verify package compatibility and electrical characteristics match the original design requirements.