74LCXH16244MEA

Overview

The 74LCXH16244MEA is a low voltage 16-bit buffer and line driver manufactured by Fairchild Semiconductor. It features five-volt tolerant inputs, allowing operation with mixed voltage systems. The device includes bus-hold circuitry to maintain stable logic levels on floating lines. It utilizes a 48-lead SSOP package and provides non-inverting buffering for high-speed digital applications requiring robust signal integrity.

Feature Summary

• Provides 16-bit buffering with non-inverting functionality
• Incorporates five-volt tolerant input structures for mixed-voltage compatibility
• Includes bus-hold circuitry to prevent floating inputs

Applications

• High-speed data bus buffering in mixed-voltage environments
• Line driving for memory interfaces
• Signal isolation in digital communication systems

Procurement Notes

Verify the specific orderable part number against current manufacturer documentation due to potential integration changes within Fairchild Semiconductor. Confirm package type and pinout compatibility with existing designs. Check for RoHS compliance status and availability as some legacy parts may have discontinued status or alternative replacements from ON Semiconductor.

Selection Notes

Select this component when 16-bit parallel data buffering is required with five-volt tolerance. Ensure the design supports the 48-lead SSOP footprint. Consider the bus-hold feature if input stability is critical during power transitions or idle states. Verify supply voltage requirements align with the low-voltage logic family specifications.

Part Context

This part belongs to the LCXH series of low-voltage CMOS logic devices. It serves as a buffer/line driver variant within the broader 74HC/HCT/LCX logic families. The MEA suffix typically denotes a specific tape-and-reel packaging configuration suitable for automated assembly processes in high-volume manufacturing environments.

Replacement Considerations

Check for equivalents such as the 74LCX16244 if bus-hold is not required. Verify cross-reference availability from ON Semiconductor following corporate integration. Ensure functional compatibility regarding input tolerance and output drive strength before substitution.