74LCX32244GX

Overview

The onsemi 74LCX32244GX is a low-voltage 32-bit buffer and line driver featuring non-inverting outputs with three-state control. It operates within a supply voltage range of 2.0V to 3.6V, supporting interfaces with 5V signal environments through 5V tolerant inputs and outputs. The device utilizes advanced CMOS technology for high-speed operation while maintaining low power dissipation, with a maximum propagation delay of 4.5ns at 3.0V. It provides ±24mA output drive capability and includes power-down protection that places inputs and outputs in a high-impedance state.

Feature Summary

• Features thirty-two non-inverting buffers with independent three-state control for each nibble, allowing flexible configuration for full 32-bit or partial bus operations.
• Designed for low-voltage applications with robust 5V tolerance on both input and output pins, enabling seamless interfacing between different logic voltage domains.
• Incorporates patented noise and EMI reduction circuitry to minimize signal interference during high-speed switching operations.
• Provides power-down protection to maintain high-impedance states during power-up or power-down sequences, preventing unintended current flow.

Applications

• Memory address drivers
• Clock distribution circuits
• Bus-oriented transmitter/receiver systems

Procurement Notes

Verify the specific ordering suffix 'G' indicates tray packaging when sourcing this component. Confirm the manufacturer origin, as the datasheet references Fairchild Semiconductor, which may impact supply chain verification. Ensure compatibility with the required FBGA96A package dimensions for PCB layout integration. Check for any automotive or industrial grade variants if operating conditions exceed standard commercial limits.

Selection Notes

Select this component for designs requiring high-density 32-bit buffering with mixed-voltage interface capabilities. The 5V tolerance allows direct connection to legacy 5V systems without level shifters. Consider the FBGA package size constraints and thermal requirements for dense board layouts. Evaluate the low quiescent current specifications for battery-powered or energy-efficient system architectures.

Part Context

This part belongs to the LCX series of low-voltage CMOS logic devices. It is functionally related to other 74LCX family members but offers a higher pin count and 32-bit width compared to standard octal buffers. The device represents an evolution in high-speed, low-power logic solutions designed for modern digital systems requiring efficient data routing across wide buses.

Replacement Considerations

Direct substitutes include the 74LCX32244G from Fairchild/ON Semiconductor. Verify pinout compatibility and electrical characteristics before replacing. Other manufacturers may offer equivalent parts under different numbering schemes; ensure voltage ranges and drive strengths match the original design requirements.