74LCX244MSA

Overview

The Fairchild Semiconductor 74LCX244MSA is an octal buffer and line driver featuring non-inverting logic with three-state outputs. Designed for low-voltage applications, it operates within a supply voltage range of 2.3V to 3.6V. The device incorporates 5V tolerant inputs and outputs, enabling direct interfacing with 5V signal environments while powered by lower voltages. It utilizes advanced CMOS technology to achieve high-speed operation with a maximum propagation delay of 6.5ns at 3.3V, alongside low power dissipation characteristics.

Feature Summary

• Provides eight non-inverting buffers with three-state output control
• Features 5V tolerant inputs and outputs for mixed-voltage system compatibility
• Supports live insertion and withdrawal through power-down high-impedance protection

Applications

• Memory address drivers in digital systems
• Clock distribution networks
• Bus-oriented transmitter and receiver circuits

Procurement Notes

Verify the specific package marking and manufacturer date code upon receipt to ensure authenticity. Confirm that the component matches the 74LCX244MSA designation exactly, as variations exist across different manufacturers within the same logical family. Check datasheet revisions for any updates regarding electrical specifications or recommended operating conditions before final integration.

Selection Notes

Select this component when designing systems requiring interface between low-voltage logic cores and 5V peripherals. Ensure the design accommodates the specified 2.3V to 3.6V supply range. Consider the 6.5ns propagation delay for timing-critical paths. Verify that the thermal management strategy aligns with the low-power dissipation profile typical of CMOS technologies.

Part Context

This part belongs to the LCX series of low-voltage CMOS logic devices. It serves as a standard solution for buffering signals in portable electronics and communication equipment where power efficiency and voltage translation are critical requirements. The MS suffix typically denotes a specific surface-mount package variant.

Replacement Considerations

Cross-reference with other manufacturers' 74LCX244 equivalents such as those from ON Semiconductor or STMicroelectronics. Verify pinout compatibility and electrical parameter alignment, specifically the 5V tolerance levels and propagation delays, before substituting.