74LCX16244MEAX

Overview

The Fairchild Semiconductor 74LCX16244MEAX is a low voltage CMOS 16-bit bus buffer featuring non-inverted outputs and three-state control. It utilizes advanced sub-micron silicon gate C2MOS technology to deliver high-speed performance with a maximum propagation delay of 4.5ns at VCC = 3V. The device operates within a supply voltage range of 2.0V to 3.6V and provides symmetrical output impedance with minimum drive currents of 24mA. It ensures compatibility with 5V signal environments through tolerant inputs and outputs, while incorporating power-down protection and robust ESD capabilities exceeding 2000V HBM.

Feature Summary

• Provides 16-bit buffering with non-inverted logic and three-state output control for efficient data management in low voltage systems.
• Features 5V tolerant inputs and outputs, enabling seamless interfacing between 3.3V components and legacy 5V signal environments.
• Incorporates power-down protection on both inputs and outputs to prevent excessive current draw during system power-off states.

Applications

• High-speed data buffering in portable electronic devices operating at low voltages
• Interface circuits connecting 3.3V logic systems to 5V tolerant buses
• Memory address and data line buffering in consumer electronics

Procurement Notes

Verify the specific suffix MEAX against official Fairchild documentation to confirm package type and tape-and-reel specifications. Ensure the component matches the required RoHS compliance status and lead-free finish standards for your assembly process. Cross-reference the manufacturer date code and lot traceability requirements with your quality assurance protocols before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring 16-bit parallel data transfer with strict low-power constraints. It is suitable for applications needing direct interface between 2.0V-3.6V logic and 5V networks without level shifters. Consider its 4.5ns propagation delay for timing-critical paths and verify that the TSSOP or similar package fits your PCB footprint constraints compared to alternative 74LCX series buffers.

Part Context

This part belongs to the 74LCX family of low-voltage CMOS logic devices, designed for high-speed operation with reduced power consumption. It serves as a standard solution for 16-bit bus buffering in modern digital systems, replacing older 74HC or 74HCT counterparts where lower voltage operation and 5V tolerance are required. The device maintains pin compatibility with industry-standard 74-series logic functions.

Replacement Considerations

Compatible substitutes include the 74LCX16244 from STMicroelectronics and ON Semiconductor, which share identical logical functions and electrical characteristics. Verify package dimensions and pinout alignment when swapping manufacturers to ensure mechanical fit and electrical connectivity remain unchanged in the existing circuit design.